Its a complicated situation, really. The last thing that Linux needs is an incentive for every little app to have its own profit motive. I mean, Android and ChromeOS have stores, but would they be successful without a solid foundation of built-in functionality?

Having said that, I haven't really observed a difference in Linux users willingness to pay for large functional applications. I don't think there are objections to paying for IntelliJ or Photoshop grade applications in general.