crashtest - have you considered getting a mobile four post and just rolling it outside when you need to get under something? Mine was 2200 delivered and it makes fooling around under a mobile much easier. A friend of mine used mine a few times and he's looking to replace his garage door so he can get one to roll in and out of his shop.
I hadn't looked too much into them, no. Where did you get one from that price? I've seen them as low as $2500 plus shipping. I don't really need a mobile lift - if I can raise a car enough off the ground that I can lay under it without using jackstands and bumping my head, I'm happy.