Yes, transportation of equipment is an issue, but a good 1 ton truck with a gooseneck trailer can move them around easily though.
I had a tracked loader myself and liked it, though I sold it soon after I bought it due to some stuck valves. They would be sweet with a multipurpose bucket (blade, bucket, clam shell), but because their grousers are triple bar style; required for frequent turns and work on hard surfaces, they load up with snow since they are so short and are useless. In Maine they are modified with a home made snow type grouser, but its more work then single bar grousers like bulldozers have which are pretty tall and get more traction.
Around here you can find them anywhere. I considered a few back in Feb when I was looking for another bulldozer and could find several in the $3500-$6000 dollar range, but eventually went with a 6 way bladed bulldozer for $10,000. It was more money but had brand new tracks and the thought of not having to pound pins sounded good to me. Unfortunately I still did when I busted both my idlers! Drat!!
The good thing about dozers is that they are simple machines. With just a basic wrench set you can tear the entire thing apart and put it back together, and their components, while rather heavy, are simple in design. I like that.
The interesting part is, I bought mine primarily for logging prior to bulldozing the stumps with a much bigger bulldozer. What I found however is that I actually use it very little. Its primary use is to make logging trails for my farm tractor, that machine sips diesel fuel and gets out just as much
wood per day. But instead of fighting my way through limbs and brush, pounding my tractor over stumps, cradle-knolls, and rocks; I push that stuff out of the way in only a few minutes time and get far more work done without beating myself up. I even used it to build a nice access road to a hardwood stand that has never been harvested. You can tell that by the red soil which is iron in the soil rusting from where it is finally being disturbed. They say the settlers here were amazed when they came from England where grass grew a measly 2 feet tall to New England where it grew over a mans head. It will be interesting to see what this virgin soil does once it is cleared and put into farm production. The reason it was never harvested however was because it was difficult to get to, but with my bulldozer I was able to build 1/2 mile road into it that you can drive a car down. Yeah I love bulldozers.