What should i do??

I havnt been playing my psp lately but lots of new games came out over the year and i dont know what to do! Im stuck with a 32mb memory stick and i have been thinking

Mabey i should get a 4gb memory stick! but i want rainbow 6 vegas for xbox360 to but  i dont have enough money for both, so i could get a 512mb one and buy rainbow 6 vegas or get a 4gb memory stick and put music, videos etc on my psp and then wait a month and get rainbow 6 vegas.

What would you do if you were in my position??