i have a question for all you "psp 2000"(or whatever you wanna call it) owners.

ive owned a psp since launch, and i do love it but mine is pretty old, and ive been looking into the new psps...and ive been thinking would it be worth it to upgrade? also how does the analog nub feel? the old psp's nub is a bit slippery imo and it just feels blah at times, i heard sony fixed this a little bit with the new psp, so i figured id ask some owners of it. also how is the new loading feature? and last but not least, daxter pack(i do already own daxter, but i wouldnt mind the 1GB stick or the family guy freakin sweet collection) or silk screened darth vader pack?

thanks!