This thread is for you to list things in here that you don't understand why people like, participate in, people believe, etc.
Something I will never, ever understand the appeal of are Beats headphones. Although they were marketed incredibly well, they are a seriously overpriced product with pretty poor durability and decent sound quality that only got huge off of peer pressure and celebrities wearing them. I wish more people who fell victim under buying Beats could do a bit of homework and check out AKG, Sennheiser, Audio Technica, Beyerdynamic, Shure, Grado, or any of the other deservedly reputable manufacturers that create headphones.