I am in the market for a new wb mower for mostly residential use...maybe some larger commercial accounts but not many. EVERYONE here uses toro gear drive or scag gear drive...maybe once in a blue moon you see a exmark gear drive. The only hydros here are the z's. On a walkbehind besides reverse what makes the hydro option worth the extra green? Would all of you say that it is REALLY worth the extra or is it a luxury? Thanks for the input and I know this thread is probably worn thin.