That sounds more like a test of trialware vs donationware, which I don't think is exactly the same as someone seeking out and using a cracked version.
I'm sure there are people who would buy a program if they couldn't find a cracked version, but...
1) It has to be enough lost sales to make it worth the effort of protecting the app rather than, say, adding features that would bring in new customers. And you also don't want to implement onerous DRM that would cost you sales.
2) If your app is at all popular, it will get cracked anyway. I'm pretty sure most of the people cracking software are doing so for fun, not profit. And they appreciate a challenge.
I'm sure there are people who would buy a program if they couldn't find a cracked version, but...
1) It has to be enough lost sales to make it worth the effort of protecting the app rather than, say, adding features that would bring in new customers. And you also don't want to implement onerous DRM that would cost you sales.
2) If your app is at all popular, it will get cracked anyway. I'm pretty sure most of the people cracking software are doing so for fun, not profit. And they appreciate a challenge.