Did you buy the 2501?
Yes, the manual gear transmission is less popular and less expensive and has noticibly more power doing anything. But it isn't less popular because of any good reason other than pure convenience.
We know the manual is reliable as a hammer, but it has taken years for people to regard the HST as being reliable. I know, I was one of the doubters back in 2008 when I got my first HST. But it hasn't had any problem, done everything asked of it, and sure is crazy handy for loader work. Other TBNers say the same.
For anything else except loader work though, I would consider gears. And I certainly would if the price difference made a difference in getting a tractor or not. With everything else going on, it wouldn't surprise me to see some very good prices on small tractors with manual transmissions.
rScotty