As GeneD14 pointed out, the only downside to my hydrostatic transmission is that if you plow, i.e. mouldboard plow (not snow plow), then the hydro is not as desireable as a gear tractor. Actually, any groundbreaking equipment like springtooth, planting, disking, chisel plowing, i.e. any traditional farming activities, seem to work better with a gear tractor. Or maybe it is psychological?
BUT, the hydrostat excels when using a front end loader, box blading, mowing, finish or bush hogging.
Obtw, I DO mouldboard plow one acre and use a four row planter, too with my 31 hp hydo tractor and it works fine. I just miss my Allis D14 for those chores!
also, the comparison to stick shift and automatic cars is a pretty good one.
My family says, "Why would anyone drive a stick shift when you can drive an automatic?" And to that I say, because a stick is more funner....!