Exibit A - myselfI try to use different platforms whenever possible and iPhone-using-me bought apps all the time. Mostly games for my son, but still I bought them. I never argued about 99 cents.
Exibit B - bad model in Microsoft StoreMicrosofts store offers trials. That's great for the consumer but not so much for the developer. A lot of people will buy an app for 99 cents to try it out. Microsoft removes that business from developers and overall lowers the turn-around of their store.
Exibit C - android users in generalAlways want everything for free. I haven't met an android user that wants to pay for anything. :) (oh, this is going to hurt)...
Results will be posted as soons as we have some hard (objective) facts! :)