Parts do wear out but routine maintenance is required on anything mechanical; trimmers, edgers,saws,refrigerators, washing machines, etc. At those times you have to spend some bucks. A little preventive maintenance can go a long way towards reducing those expensives and I have always surprised myself after attemping to do most repairs myself. Right now the only problem I am having with my 33" RER is finding the proper length of belt to fit it. I have purchased two belts, with the correct part no. and both are too short and keep the blade engaged, even without touching the tensioner lever. My neighbors are cutting their lawns already and mine is beginning to look a little shabby.