I have an A and an 8N as my little tractors. Nice to use in the barnyard as they are light enough to not tear up grass and stuff. They will do most jobs that you need without firing up a big tractor and threading it through the trees and buildings. I didn't want/need the A but took it on trade for a vehicle that set all the time anyway.
I rarely use the A. It will probably be that way for you. The cultivision was great but very few cultivate that way anymore. I sure am not taking that little bugger out to the wheat stubble with the intention of doing anything other than checking things out. It's kind of sad because I have the full set of mounted cultivators for it sitting in the shed.
I have a woods belly mower for both. I am 99% sure they are identical. I have decided that this spring I will put a belly mower on the A. Maybe then I will actually use it a bit.
That said, you can never have too many old tractors. Even if you just use it to check fence it is a fun little tractor. Just not as useable as something with 3 point and hydraulics.