I will be using this mower for residential use, to cut only my 3/8 acre on a slope. My 21" pushmower simply is not cutting it anymore. I want to purchase a commercial grade mower mainly because of the quality of cut, and the extra cutting width. I like Exmark. Comparing the Metro HP 48 to the Lazer HP 48 is 3000 vs 6000 (ballpark); Basically twice the amount of money to go with the ZTR. A lot of experienced users here talk about fatigue from operating the belt drive WB compared to the ease of a ZTR. Hydro walk behinds approach the cost of a ZTR. Is the ZTR worth the additional cash (err, loan)? I don't even want to consider a residential ZTR. Any other suggestions for the best mower to suit my situation will be appreciated.