Went to my hangar and my tire was flat. I Aired it up and in about 20 min, it lost ~20 PSI so I didn't want to fly it to my normal guy. There's a shop next door. I go over and ask can you get me on your schedule? My tire is flat. He calls me and says Tire is 299 tube is 99. I don't have a lot of choice so i say go for it. He calls me that evening and says it's fixed. I go to the shop to write him a check and he says its $690 Tire, Tube, and 2.5 hours labor. I am like F**K but whatever. THEN the dude says do you want your old tire? I say sure. He says "I would hang on to that, it is in really good shape" I asked "What was the issue causing the leak? He says we didn't want to waste time digging into why it was leaking so we just replaced the tire and tube. I found the tire online and he marked it up 100% but that last bit about getting me a tire to replace a perfectly good tire at a 100% mark up has me a little ****ed. What the hell just happened?