You actually wasted money buying the Collectors Edition??? ROFL! That game is okay. If you've played Most Wanted you can kinda tell they're not too different other than the heavy emphasis on drifting rather than police evasion. From what I hear, it's a pretty short game too. I downloaded the demo and personally I think it sucks. Things are more vibrant and colorful in Carbon, but it still uses the same graphics engine and the gameplay is very much the same.
Did you get your money's worth? Definately not. That game is worth a rental at best, or you could sell it when you're done.
Will it be fun? Depends.