Most people don’t buy a skid steer for the sole purpose of running a mower. Buying a cutter for a CTL that you already own is a lot cheaper than buying a dedicated setup. I already have a skid steer for my construction business and a $6,000 cutter turns it into a pretty capable brush cutter. A forestry tractor would be dang near useless for the rest of my needs. If you already own a tractor you’d probably buy a tractor mower but a tractor needs tens of thousands of dollars of shields to be used like that where the skid steer is a lot more capable in stock configuration.
I didn't say people would buy a skidsteer just for mowing. I said people pay crazy prices to have a skidsteer doing mowing for them.
Obviously, you're a contractor and run a skidsteer for other types of work. That's about the only time I've seen skidsteers mowing in this side of the pond, only because there was like 10% mowing on that job and 90% dirt work.
As far as shields go, for a cab tractor, sure. It may need some more protection to push branches away and possibly a skidplate, definitely not tens of thousands of dollars. For a ROPS tractor, maybe a simple skid plate at most for those guys that like plowing through everything with the tractor.
With that $6k you say, you could buy one of the best chain cutters here and still have $3k to spend in shielding. If the guy operating the tractor knows what he is doing, he will hardly need any shielding though. That chain skirts on the mower will be plenty enough.
It's pretty obvious that some folks here have never seen a chain cutter working, let a alone a tractor working in the woods with it and how well it will actually move, probably because they think its needs an huge tractor with an oversized cutter to get anything done. That's perfectly fine. I'm just gonna say, you would be surprised.