Just wanted to weigh in on the discussion surrounding this deal:
Declassified launched with broken multiplayer (par for the course w/ Nihilistic titles...), a ridiculous price point, and high expectations b/c of its namesake; in other words, it was doomed from day one. Also, the mainstream press has already written off the Vita for the most part, so the game has that to contend with, too.
That said, I'll echo what many others on here have stated: the multiplayer--which is now fixed--is a ton of fun, and really does offer the complete CoD experience on the go. The maps are smaller (...tho not Nuketown small), but so is the player count. The controls are rock-solid and retain the same feel as the rest of the series. The load-out and leveling systems are nearly on par with the original Black Ops, so if you were a fan of that, then expect to get severely addicted to this.
Break it down like this: the $30 price point equals $10 for the minimal single player and $20 for the full-featured, incredibly addictive multiplayer. Vita owners who enjoy CoD multiplayer really need to check this game out--there really is no other portable experience like it on the planet.