You could build something really useful, but if I can replicate 95% of that in a weekend with Claude I'm obviously not going to pay you for it.
Some SaaS products have network effects, but that doesn't appy to new software.
Starting a SaaS business in 2026 seems a bit silly to me. Not saying people won't make money, but you'd have to be pretty lucky.
You'd be surprised how much money companies throw at very simple products, I'm working for a company making 100k mrr and was virtually entirely vibe coded by one dev until very recently