[icahnvalyou]

I would be so mad if I put in the effort to build everything only to be pay-walled at the end. Just, livid.

[billmalarky]

I mean, you don't "spring it" on the user at the end. You say something like "try full features now for free! If you build something you like keep it for low low price of....."

It's an effective way of removing friction.