I'm searching for a used, cheap rider/tractor. Which engines are prone to the most issues? I grew up on a farm -- driving riders in the 70s/80s. They were built like tanks. All we ever did was sharpen blades, change oil, deck belt, battery. Now, I see tons of 5 yr old mowers on CL, and they have issues already. Should I stay clear of new ones, and look for oldies (70s-90s)? I'm really not going to be using it as a mower. It's more of a toy -- which I intend to pull a dethatcher, aerator, trailer with. But, I don't want a toy that I will be sinking money into every time I need to use it. The newer tractors look nice, but appear to be built cheap. Any particular brands/motors to stay clear of? How about RERs? I'm assuming an 8-10 HP RER could pull a small dethatcher/aerator? It would be easier to store an RER, but they appear to be problematic as well? Thanks.