Also the getting in and out isn't as much of a problem.
You think that now, but get in and out of one many times throughout a work day and you'll probably change your mind. I'm 29 years old and consider my self to be in very good shape, I'd much rather get on and off a tractor many times a day than a skid steer. You also have the issue of trying to get out of the skid steer with the arms part way up (like if you wanted to throw something in the bucket or on the forks by hand), or getting in and out with the arms all the way up (dangerous.) When I have work like that to do with the skid steer I try to always have a helper so I'm not climbing in and out of the thing all day.
Since your tasks are mostly farm related I give my experience on a skid steer vs tractor in a farming application. A skid steer is a much more production oriented machine. Whether loading trucks, cleaning pens, stacking round bales, drilling post holes, moving materials on pallets, etc, the skid steer is going to be much faster and easier. It's also going to tear up the ground more. I really like mine for loading manure, loading dump trucks, and stacking round bales in the barn. Also there is no comparison on using forks on a skid steer vs a tractor since the skid steer has such superior visibility.
The tractor, on the other hand, will be a bit slower and more clumsy than the skid steer at the same tasks, but more versatile. The ability to have two attachments on the tractor is in it's favor as well. Say a bucket on the front and a blade or box blade on the rear, or forks on the front and post hole digger on the back. Also, as mentioned before, the tractor is much easier to get on and off of, which if you'll be doing at lot of little tasks will be important.
The main reason I have a skid steer is for my construction business. It does come in very handy on the farm, but unless you are running a large farming operation I would definitely choose a 4wd tractor with a loader over a skid steer. That said, a skid steer/2wd larger tractor combo is a good setup (I use my Case 1845C and International 454 together a lot), but there are somethings on the farm having both of those in one unit is best for. I guess your decision really comes down to what you want, neither would be a 'bad' option.