I've currently got 50,000+ points saved up on my account.
It's all because I've done roughly 80 races with the method MsRR mentioned. It's really easy, really fast, and it's very effective. I always do it against CPUs, though, so I always win with some 22 feet to spare.

I don't think I'll have any trouble buying things for awhile in Class B or Class A. In fact, I think I could realistically see myself in Class B either tonight or tomorrow.

you are hard to beat! I lost every single race to you by a lot!
BTW, I called LEGO and asked if people who are in the test but didn't get the invitation (like me) will still get the badge. I'll post the answer as soon as the tech support person finishes doing research on it.