car trouble

Why is car work so expensive? I have dropped more than a lot of people pay for their car getting mine fixed this past week! First, I got some body/paint work done on it. It wasn't anything major, just some scratches that had been there for awhile but one of the little spots was starting to rust a little so figured I better get it taken care of. So I was without my car all week and it cost me a TON. Then they managed to miss a part of it so I get to go without a car again on monday. Yipee. Then I decided that I had better take it in for a 30,000 mile maintenance since I know nothing about cars. Plus I was pretty sure my transmission was leaking. Turns out I was right about the transmission, this is my second transmission leak and my car is only 2 years old! Then to add to the trouble I also have a leak in my rear differential! Thank god I decided to get the extended warranty. So that means yet another day with no car and having to bug someone to give me rides to and from the dealer. Think I may be trading this car in before I hit the 70,000 mile mark and am without a warranty with the way things are going. Sucks though cuz I was hoping for a little time with no car payment but looks like no such luck.