With a price point of 800 MSP, it's difficult to recommend Tower Bloxx Deluxe unconditionally. However, if you have young gamers in your household, or someone who is getting into games for the first time, they might find it interesting as a first foray into puzzle gameplay. The core building game can be enjoyable, particularly if you have a few friends to compete with on the leaderboards or someone to play the offline Co-Op mode with.
But there just isn't enough gameplay variety or content to justify the price tag. Tower Bloxx worked as a Flash game and a mobile game, but on Live Arcade the competition is much stronger.