Before the vita was released in the US, I also being a teen saved my cash for 6 months, only to find that the release date was being pushed out 2 more months. However, the day i got my vita, and still today, i don't regret a single penny of my purchase. Even if its struggling a little right now, games like Gravity Rush, and Little Big Planet show what the vita really can do. I'd absolutely go for it if i were you. : )
I bought my PS Vita Black Ops bundle for $200 and Unit 13 for $18 on Black Friday. I suspended all forms of entertainment for more than a month. I typically watch seasons of old TV shows on DVD, 1 episode per day. I stopped watching my DVDs for more than a month.
So, in a sense, Unit 13 paid for itself, and then some.