My complaint isn't about cost. And it's not really a complaint. More like reality. The car doesn't seem to be that much different than the 3, except for the wheel attachment. I like the car, just don't see the need to replace the 3 when I can't run my club spec tires(orange stripe) on it. Sure, I can purchase the adaptors, but now I'm basically back to a 3. It's not about cost-it's about utilizing the "upgrades". Just my .02