Without a doubt, there are great finds out there. But living up in Canada limits me to the amount of quality used machines that are available in my region. And with where our dollar is sitting, buying from the States would end up being close to the price of a new tractor, after the exchange rate, shipping costs and any duty at the boarder. For a few extra thousand, and a lot less headache, a new one seems logical. However I'd never rule out buying a good used machine. If it came with the core attachments that I want, any additional implements can be picked up as needed.
I've looked at a few B3030's online. Really nice unit. I think I'd try for a B3200. Just a bit small and lighter than the 3030. Mind you if the price is right, I wouldn't be picky with either. JD's are a bit more hard to come by. Been looking for older 3000 series units. Not much luck thus far.