There are some great buses out there. I saw about four thirty foot dog-nose buses, each with an International dta360 and Allison mt643, go for about $2,500 a few years ago. Not much for towing, though.
That was a bus that I wish I had bought, but you could also say that about those 10 wheel Crowns, with a turbo'd 6V71, that went for $3,200.