how do you intend to use your new tractor? That will determine what you get. Do you want it for doing chores such as feeding in the winter time? Does it get cold where you are? Is a comfort cover good enough to keep you warm. If you are just going to be using it in the spring/summer/fall, I would probably skip on the cab as well, it adds quite a few dollars to the price of a tractor.
I made this very decision you are mauling over right now, back last year. I had 2 80 horse tractors without a cab,that just weren't getting any use 6 months out of the year, so I decided to trade them both in for one tractor that had a cab, and it is going to become my new main chore tractor/hay tractor. I purposely got a smaller tractor (another 80 horse) just because I already have a 110 horse, and another 100 horse, and a 330 horse tractor, so I don't intend to use this one for any field work, or pulling planters.
Of course this was an easy decision for me, I already have several small tractors without cabs of the less than 80 horse variety, (8N ford, D15 Alis Chalmers, Farmall Cub, ACWD, Miniapolis Moline) and two more without cabs just weren't working into my program.
Now, for running things like a hay rake, dirt scraping, mowing, running hay wagons, etc, a cabless tractor works just fine. Sometimes it's more convienient to hop on and off a tractor and not have to worry about opening and shutting a door. Sometimes cab hight is a problem, like with low roof sheds, and working under trees. ( my wd is going to be converted at some point to an orchard tractor. ;-) )
However, another consideration is if you are going to be doing lots of dirty or dangerous work. A cab is safer if you are running a loader, and cleaner if you are running a round bailer, or square bailer, or manurer spreder. You don't see combines too much any more without cabs, and some tractor work can get pretty dusty as well.
Lastly, is the tractor something you will want to trade off right away, or something you will keep untill the wheels fall off. (I run my equipment untill I can't give it away, my neighbor trades darn near every other year) A cab will help resale.
Good luck tractor shopping. :banana: