I picked it up for $30 because I needed a new game BAD. (a la my search for even a GBA game)
This is the best arcade racer I've played since Burnout 2. It leans more towards the better SF Rush games than Burnout though. The star objective gives it a special flavor that makes the game much more interesting than it would have been as a simple "finish first" racer. Some courses I found myself ignoring my placing and just grinding out stars, others I found that I absolutely had to have 1st place in order to pass the star requirement. After I get through the courses once, I am going to see if I can pass them all without getting first and just merely pounding out stars through the course.
I wonder why there hasn't been sequel talk yet. It's a game that did really good(quality wise) its first time out, but still has areas that can easily be added to. Some online play, more courses, add Bikes maybe, more multiplayer in general.