I have never ever seen this. If your "friends" treat you badly because of your phone choice, they are not really your friends. Also, iMessage is not that great. It's nice but it is not amazing like some people make it out to be.
I totally agree with you, but it's pretty obvious why this behaviour exists. At the end of the day, a cell phone is as much a status symbol, something akin to the clothes you wear, as much as it is an actual phone. Would you potentially lower your opinion of someone wearing a strange piece of clothing? The principle is exactly the same.
