Hard to tell, and lots if valid points!
I personally have way too many cars! Granted i dont run them all just hate selling most of them! We spend so much and never see any of it back
Currently ive got 3 2wd cars set up and ready to go, TM2, TC02C and a TC02... I do change cars from time to time depending on the track conditions, but i didnt go out and buy them all at once, i had one, a new model came out, bought that then the latest (TM2) came out so i got that...
My three cars all use the same wheels/tires so im not buying tires for each, just a set if wets, and a set of dry, replace when worn out...
It all comes down to the individual at the end of the day, i do quite like the idea of a restricted class though, we used to do dirt spec, 19 turn motors, the racing was soo close! Brilliant fun! But again, its down to cost, motors were £30 then