I make a small desktop app for web developers — for the Mac, and, recently, for Windows too. The Mac version is ready to launch, and has more than 1000 active users (and more than 10000 downloads), based solely on a word-of-mouth marketing. Many users really love it, and I want to start charging money ($9.99).
Here's the kicker: sandboxing will be a pain in the ass with this app, and I also have a plugin system implemented, but not published or in use, because that would be a PIA with Mac App Store too (so I want to launch first and figure that out later). Apple also did not like my icon, which is not an issue, but also a reason why the launch is delayed.
Do you think developer tools benefit much from the App Store effect? Should I simply launch with PayPal payments, or should I not blow the unique chance to build up a good App Store rating on launch (when many existing users will go and buy it over a short period of time)?
If it turns out that your plugin system is actually a big win, then you can change your mind later. And it's not an absolute kiss of death. For example, almost all of Rogue Amoeba's apps can't be made App Store compatible, but they don't seem to be hurting too much because of it.