Because its FUNN !! I mean, I'm shopaholic myself, I just love shopping.
I like shopping cause they have so much fun buying and dressing myself, which I get compliments from people about it, which tell me that I got great sense out fashion etc. ! And its a way of expressing my style. And, well, mostly I like shopping for clothes, accessorise, purses, shoes etc. So yeah basiclly EVERYTHING !