...I just think you're going to be one of the
many guys selling a low-hours, year-old 25hp tractor to get something bigger; there are always a bunch of them on craigslist trying in vain to recoup their investment. If you really want to go that route, buy a used one from one of those guys that already had to eat their hat.
You're saying the 25 horse machine "could" do what you want. It's probably possible, but how long are you going to spend trying to eke that out of it? How much wear are you going to put on that machine, pushing it to the outer limits? As somebody said, those subcompacts are more like a big lawnmower than a small tractor. Compare the B and L series Kubotas... they're nearly the same price and nearly the same size, but one is designed to be God's gift to lawnmowing (and landscaping) and one is designed to do actual work. I don't think anybody asked you, but are you looking at subcompacts because you want a belly mower? A belly mower would be the only thing a subcompact has going for it for anyone with any acreage.
Subcompacts visually look like the miniature "real" tractors, but they're just a big lawnmower with some limited ability to run implements, a light-duty loader or a very small (and expensive for its limited ability) backhoe.
I have a little
magnatrac for my tiny property. It would haul better, and dig WAY better, than what you're looking at, but they move slow as molasses and they're not cheap.