Its social filter, you flaunt it, its new bling, you get a new swagger. same way people with alot of tattoos hang out with people with alot of tattoos. Or people show off new Jordans or a nice designer suit. Ladies you know you drool over new handbags to flaunt.
Its your way of telling people, hey my phone is the best and newest you can buy.
...whats wrong with tattoos? tattooist. *smh*