Ive been into bodybuilding/weight training since i was 18.

Things i love about being buff:

Having people bang into you in clubs turn round and appologise
barging through crowds in bars and clubs and knowone saying a thing
jumping out your car in road rage incidents and the other person other doesnt get out or gets back in and locks the doors
having chicks mid sex looking at your arms/chest and shoulders and telling you, you look amazing.
the feeling of power you have and confidence within yourself
hitting 34 and looking at guys your age who are starting to look old and shitty and you just keep on getting better.

ultimately i train for only myself however - i was bullied at school and made to feel worthless so for me training was what i needed.