Fire Pro Wrestling Returns (PS2) - $14.99
Just get a CB/AR/GS to transfer saves and a second memory card, and you had a nearly limitless supply of detailed and accurate CAWs at your fingertips.
EDIT: Oh what the hey, I'll give some PSP love:
- I second Puzzle Quest: That game is just chock full of addictive gameplay.
- Sega Genesis Collection: Sure it was released in late 2006 and it's a retro collection, but put it up against the year's Virtual Console pricing of the same Genesis games, and the games in this collection start to look look like a very good deal.
- Disgaea Afternoon of Darkness: The famous PS2 SRPG comes to the portable in full form, with some extras. I mean, the game itself will probably take dozens (possibly over 100) of hours to finish all the way through, especially with multiple endings, a heavy focus on grinding and side-things like the Dark Assembly and Item World.
- Castlevania Dracula X Chronicles: Two great Castlevania classics, both emulated perfectly. One, Rondo of Blood, was only released in Japan on the Turbo CD, and fetched quite a price on the open market. Symphony returns too with plenty of upgrades, restoration, and a somewhat needed re-dubbing.