I'm trying to bootstrap a PaaS (something that helps people sell projects) and I really need your opinion on the best approach to take (from the buyer's perspective) in regards to pricing. I have 2 options in my mind:

1. Put a fixed price - better from the seller's perspective because even if your clients are not making any income you still get your subscriptions but might scare people off, especially those that want to try out the service.

2. Take a percent of each sale generated through my platform - better for small clients since they don't lose any money if there are no sales but might scare off some that generate a lot of sales and start to think that they lose too much this way.

Both have advantages and disadvantages, as clients on other services...what would you prefer?