http://www.amazon.com/Memory-Stick-Micro-Flash-Readers/dp/B007F88NBS/ref=sr_1_11?ie=UTF8&qid=1349112089&sr=8-11&keywords=M2+memory+stick+16GBForgive me for branching but since when were M2 Micro memory sticks ever cheap?
Versus
http://www.amazon.com/16GB-PlayStation-Vita-Memory-Card/dp/B006JKASAC/ref=sr_1_1?s=electronics&ie=UTF8&qid=1349112054&sr=1-1&keywords=Vita+16GB
WEEEELL...
Not to mention the Go's built-in storage which the Vita doesn't have. By proxy, if you're planning on using it to boot ISO images, the Go or an older PSP model is the go-to medium due to the high price of Vita's memory cards.