This. And related: I don't want to have to try your system in order to get pricing. I've seen that a couple times, particularly for things that are in beta, where you don't even see pricing until the end of the trial period.
Integrating a new system requires some effort. And there are some systems, like the one in question here, where there's a real cap on how much value they could possibly provide for me, even if they're perfect.
If I can't see whether the pricing falls in that range before I need to sign up, I'm just not going to seriously consider it for most services.
This is really one of the worst patterns in the SAAS market.
I don't want to provide my data to multiple services just to be able to compare their prices and find out which one I'm actually gonna use. At first this will lead to countless automated mails from all those "founders" asking why I haven't started paying yet, and if I'm unlucky my credentials end up on haveibeenpwned.com…
Integrating a new system requires some effort. And there are some systems, like the one in question here, where there's a real cap on how much value they could possibly provide for me, even if they're perfect.
If I can't see whether the pricing falls in that range before I need to sign up, I'm just not going to seriously consider it for most services.