There are always amazing deals on 1/8 buggy tires in our For Sale forums here. Quite a bit of variety and most are new or barely used and you'll get them for much less than a shop. I usually buy my buggy tires on the forums as I get them for $20-$25/set of 4 with foams.
Good luck.
Hi JSR, i understand what you are thinkink about but usually there is 1 set, so if i would like to order 5 sets, i have to pay shipping cost to Europe 5 times (which is very high).