Rocket42- Once you get more expirence in 1/8th buggy racing and run on more than 2 different tracks you'll see that some tracks can be very hard on tires. Some tracks are super easy on tires though t of course, but in some parts of North America most the tracks are hard on tires. For example at the Canadian nationals last month I completely destroyed a set of Panther K2's in a 45min main, most of the track up north here are clay and they kill tires. On an 1/8th scale it gets expensive pretty quick sometimes. Your pricing comparison for 1/8th tires vs. 1/10th tires doesn't work of course though because the front tires on 2wd 1/10th cars last a very long time. So fresh tires only end up being a third of the cost of 1/8th tires, since of course you always have to replace the front and rear. Plus with 1/8th there is the cost of glow plugs, air filters, filter oil, fuel, afterrun oil, carb Orings, backup motors, clutch bearings, clutch shoes/springs. Then again I'm not really complaining, 1/8th buggy is fun to race, and the suspension parts don't break. Racing is expensive.