I think that I have tried 30 or 40 small Mac applications so far, for various purposes. I try out apps by completely switching to it for a period of time. I’m not running it with my existing app. Thus, it must be able to pickup already existing data (the way how it is done is irrelevant) and to have no restriction on usage during that period. Only that way I’ll be able to decide does it fits me and should I buy it or not.
I wrote a bit about it in my first post about switching to Mac and mentioned that some Mac developers have a tendency toward severe limitations in the trial mode. I honestly believe that this is hurting their sales and does not prevent pirating they work.
Examples are various.