Looking to buy a ZTR mower for my home. Being new to all this technology it can get very confusing. I've been studying the Hustler Fastrak and Mini Fastrak 42" - 52", Dixie Chopper and Gravely models of similar size. All seem to be built a cut above the normal residencial/entry level mowers. A dealer yesterday told me the weakest part of these model ZTRs will be the drive drain. That most commercial level ZTRs have individual pumps etc., and therfore they are much more reliable. I mow app. 1.5 acres, of mostely flat lawn, with numerous flower beds, but not many trees so even he said it would take many years for me to wear the drives out on any of these ZTRs. BUT, he said that eXMark has a model that with manufacturers rebate will be priced at $5100 and it is truely a commerical grade mower. That's cheaper than the larger model FasTrak's. How do they compare? Is the drive train really inferior? if so is it something I should even worry about? Looking for info to help me make a decision.