Which one should i invest in? They both can play music, videos, and look at pictures yadda yadda.... they both also have wifi web browsers. the only big difference is that the psp go has expanable memory and it can play games (yes i know zune can play games too, but theres only like 5 available or something). But i've also herd that the new spot for the analog stick on the psp is in an awkward spot, and that older umd games are usless because it's an all digital game device. So my hopes and dreams of playing final fantasy tactics on the go are crushed. So which one should i get?