I've had this experience time and again, too. I think their assumption is that everyone has/is an Apple product, and whoever doesn't have one will get one in the near future anyway because who would ever willingly use an Android device? (I can't even blame them for that sentiment.)



Regarding the 'benefits of open source' discussion, I'll just point to this short article by rms. You (sulu and others) bring practical arguments into a discussion which is purely about ethics. pichlo is right here, In that there is nothing inherently more trustworthy in 'open source' than in 'closed source' software. You place your trust in people, not in code.