Accelerator Pedal problems of the 1996 Mazda 626

I have a 96 626 that has 125,000 miles. I purchased my car in 98 with 60,000 miles. In may of 2000 I had to replace the oxygen sensor. I have also had to replace the left front axel and the right cv joint boot in Feb. 2003. Now I have replace my entire transmission which is going to cost around 2300. I had no indications that I had transmission problems until it just quit. On my way to work my car just stopped moving on the interstate. When I pressed the accelerator it wouldn't pull. So I got off the road safely and attempted to see what the problem was. The car was not moving forward or backwards. I had to have it towed to the transmission shop to be told the wonderful news. I have been doing research and I'm finding this car has lots of problems. I am also having problems with oil leaking and occasionally the accelerator pedal appears to be hard to press as if it's stuck for a few minutes or it's real tight. I would not advise anyone to purchase a Mazda. Don't even take it if it's free because it would be cheaper to purchase a car. I realize my car has 125,000 miles but I had a Nissan that I drove 180,000 miles for before major problems occurred. I'm filing this complaint in hopes something can be done because this is a major problem.