What is the total cost of \"we will just use X\"?
Every fast team says it eventually: "We will just use X." X might be a SaaS, a cloud database, a low code builder, or the framework everyone on LinkedIn is pretending to love this quarter. The checkout page shows a clean monthly number. Your brain relaxes. The decision feels done.
It is not done. The monthly line item is the trailer. The movie is what you pay in time, lock in, and the work you still do after the credit card clears.
I have watched founders treat a $49 plan like a finished architecture decision. Six months later they are paying for seats, integrations, a part time admin, and a migration nobody wants to schedule. The sticker price was never the bill. It was marketing for a longer relationship.
My default: count five years before you default
Before I let a team "just use X," I want a five year number. Not a fantasy number. A number that assumes we double headcount, wire in two more systems, and eventually try to leave.
If nobody can produce that without sweating, we are not buying speed. We are buying a surprise invoice dressed up as momentum.
That sounds harsh. It is also how you keep engineers building product instead of babysitting a vendor's quirks.
What actually goes on the ledger
Licenses and seats are the obvious line. Growth taxes are real. The plan that looked cheap at twelve people becomes a board meeting at forty.
Implementation is where optimism dies. Imports, SSO, custom fields, the first migration that reveals your data was never as clean as you told investors. That work does not show up on the pricing page.
Integration is glue code, webhooks, and retries that fail at 2 a.m. on a holiday. Every new system that touches X adds another failure mode your team owns whether or not the vendor's logo is on the slide.
Training is tuition for every hire. Your senior engineer becomes the unofficial X expert because the docs assume you already run a platform org.
Operations is the question nobody wants in a kickoff: who watches this, who renews it, who notices when it fails silently? If the answer is "whoever is free," you have a job opening disguised as a subscription.
Exit cost is the one vendors hope you never model. Export quality, rewrite effort, contract terms, the report that only exists inside their UI. Data gravity is not a metaphor. Once your automations and dashboards depend on X, leaving hurts even when you hate the product.
If you only compare $49 versus $199 plans, you are shopping. You are not deciding.
The hidden bills founders miss until they hurt
Workflow tax is the cost of forcing your process into someone else's model. Your team invents spreadsheets beside the tool because the tool cannot bend without a "professional services" quote.
Identity sprawl is another login, another permission matrix, another offboarding checklist that HR discovers the hard way.
Support theater burns a full day so you can learn the answer was "not supported on your tier." The chatbot was not help. It was a moat.
Opportunity cost is the cruelest line item because it never appears on a vendor invoice. Engineers tune X instead of shipping what customers pay for. That is not a tooling choice. That is a product strategy you made by accident.
A scoring pass that takes ten minutes
For any candidate X, score 1 to 5 on five questions:
- How hard is day two operations?
- How painful is export if we leave in eighteen months?
- How many other systems must talk to it?
- How often will non engineers need to change behavior inside it?
- How bad is downtime for revenue or trust?
Low scores are fine for experiments. They are dangerous for the system of record. I would not let a low score tool hold billing, permissions, or the workflow your whole company runs on.
When "just use X" is the right call
Buy when X is commodity infrastructure and your differentiation lives somewhere else. Email delivery, commodity auth, commodity hosting often qualify. You still need an owner and a backup plan. You do not need to invent SMTP because you read a thread about sovereignty.
Build or carefully assemble when X would hold your core workflow hostage, or when every quote assumes infinite seats and infinite patience from your team.
The mistake is not using vendors. The mistake is using vendors for the spine of the business without admitting you did.
How this shows up in quotes and internal tools
Vendors love bundling X into a "full stack" story. Translate that with What does "full stack" mean on a vendor quote?. If X becomes an internal backbone, ask whether it can survive the first hire.
What I would tell a founder in the same spot
Say this out loud in the room: "Show me the five year cost if we double seats, integrate two more systems, and leave."
Teams that answer calmly have done the work. Teams that laugh it off are selling momentum, not making a decision.
Here is what broke for me early: treating monthly SaaS spend like the full price of ownership. Here is what we did instead: a one page ledger with implementation, integration, and exit on it. Here is what I would not do again: let "we will just use X" end a conversation that should have been about who owns the system when the vendor changes terms.
Work with Kleto
I am James Cowan, a product engineer and the founder of Kleto. Kleto is a product engineering agency that ships production software from strategy through handoff. We help founders count total cost before "just use X" becomes the architecture. If that matches your stack, contact Kleto and we will scope a sensible first step.