Mike L.
As far as Cub attachments I think a winch would be very low on my priorites.
First of all you don't have enough weight to pull anything very big, without being tied off to a tree.
Unless you are getting stuck all the time a chain and another tractor should be adequate.
The only other purpose I could think of would be some sort of lifting boom and that could be dangerous because of the short wheelbase of the cub.
Its your money, your Cub, and you may have some other ideas.
Winches on the right vehicle at the right time can be worth their weight in gold, but they can also be very dangerous.
Just my .02 cents.