My first reaction to your post was, "are you kidding me?? get over it and have some confidence in yourself, dont be bothered by other's reactions to what you bought as its what you want"
But, I assume from your comments and your friends' comments that youre on the younger side (im in my late 30s) and I have to remind myself that although i think this way now (ive had negative comments too from friends, coworkers, my boss, my wife, etc but I just dont care - none of it phases me because this is MY purchase for MY enjoyment, NOT theirs, so i could care less what they had to say about it), i didnt ALWAYS think that way, however, especially when I was younger, even into my 20s.
My point is, you shouldnt care, but I can understand why you would, especially if youre younger, and to also rest assured that as you get older, no matter what kind of ***** you may get from your friends, family, or whatever about stuff you buy for yourself, you will definitely care less because you will be more sure of yourself and you will have more clarity on the fact that whatever you bought is for your enjoyment, so it does not matter one bit what they think.
Hope this helps!