Many brand cars are also being sold. We are looking at Soar in the long term and we are here to stay. Any edition of the Soar buggy is raceable out of the box but if you can have a new car, who wouldn't?
I guess that's why buggies are changing hand. I'm on the 998 TD1 now. As mentioned by Mike, it's pretty damn tough so little needs to be changed.
Cheers.