I will admit it... but only because it's my hobby damn it jim!! Collect the cars we'd love to race. Race the cars we love to collect... then sell them for money towards the next best greatest thing!
Shortest time I had with a car.... 2 weeks. XXX-S G+. Got it. Built it. Won with it. Sold it that day. Longest... My Yokomo SD. Got it when it came out in Japan last year around March... still have it and race it now.