I would get a cab (not that much more compared to other tractors) but I want to use the tractor out in the woods and would not be on finished trails at times. I need to get back into the woods where I dropped a tree. I'd have to cut a lot down in order to do that. Another negative I think about is to constantly have to open and close doors when I'm getting in and out of the cab to move things around.
Not trying to change your mind here. You get what you feel you need, its your money. However...
When I was looking to buy a tractor I figured it was A)too expensive to get a tractor with a cab, and B) since I live in the forest and will be using the tractor to move logs, firewood, brush, etc on steep hill sides, that a cab would limit the clearance, limbs would break the glass, doors would get broken, the tractors center of gravity would be too high, etc.
When I decided to pull the trigger, I went into the dealership with my wife. Sat down and started figuring out which tractor was right for me. I already knew what tractor I wanted, an LS XR4145 open station for the reasons above. The dealer asked "cab or no cab?" to which I said no cab.
"Why?"
"The reasons mentioned above."
He said the price difference which solved issue A. The center of gravity is a non-issue as well since they are about the same, and "I'd probably chicken out long before the tractor tips anyway." He was absolutely right about that. He has only replaced one door on any cab tractor, and that is because an owner got lazy and didnt close it before driving through a gate.
I took the risk and bought the cab model. I have done some serious forestry with this tractor. The cab actually protects me from limbs as I drive though the forest. The limbs simply bend or break out of the way. There have been two break downs because of using this tractor in the forest: 1) I was turning sharp while wearing chains when out mowing down thick brush in the forest. The chains bound up in the loader brackets and broke a control arm. Simple warranty repair. 2) while clearing some brush a stick jumped up and poked a small hole in my fuel line. The hole didnt leak fuel, but did suck air. Both issues were not caused by the cab.
I do it all with my tractor. I have a backhoe, where I dig stumps, trenches, etc. Getting off and on the backhoe with a cab kinda does suck. But not horribly bad. Gives me a second or two to stretch my legs, stand up for a second. I plow, cultivate, seed, and mow large fields. With the cab, is easy. Listen to music, air conditioning, much less dust, no bugs, it's enjoyable. In the winter, I plow a long driveway. I just ordered a snow blower. I wouldn't want to have an open station tractor with one. There have been mornings I've plowed the driveway in gym shorts, a tee shirt, and flip flops. Heat is a godsend with it's 9 degrees out and blowing snow. And then I go logging or clearing brush in the forest. Burning slash piles, etc. The cab is actually a nice reprieve from the bugs and the heat, if only for a few minutes. While burning, I dont worry about smoke or ash, or even rain (I burn in the winter).
Some of the things about having a cab, that you mentioned, are negatives. There is a clearance issue. You cannot fold down a cab to park in a shop or garage. The right side door for entry, while doable (if your skinny) is not ideal. Open and closing doors can be a pain, and I get why the guy broke his while driving through a gate. I get lazy sometimes too and simply leave it open while driving down the driveway or whatever. But in general, its not much to open and close them.
Just things to consider for what's its worth. Like I stated above, you got to get what you feel is correct for you. I was in the same mindset, but took a chance, and was pleasantly surprised.