Has the cost of building software dropped 90%?

Had the cost of building custom software dropped 90%, we would be seeing a flurry of low-cost, decent-quality SaaS offering all over the marketplace, possibly undercutting some established players.

From where I sit, right now, this does not seem to be the case.

This is as if writing down the code is not the biggest problem, or the biggest time sink, of building software.

People vibe one-off solutions for themselves all the time. They just don't have the desire to productionalize them. Frankly, product knowledge is something LLMs are not that good at

Same. I hate doing mobile coding, but just in the last few months I AI-coded 3 apps specifically for my needs. They'll never get released publicly, because they'd need polish and features that I don't care about personally. They potentially replace some SaaS too.