If you are in the Phoenix area I would start going to to all the machine shop auctions. At least one machine shop here goes out of business a week I think and I hear California is about as bad. Just two weeks ago I saw a really nice hydro. cnc bender go for $4500 and it was probably only 1 or 2 years old. The JD2 is nice and I even think you can get a hydro assist for it with a foot pedal (i think aftermarket though). I know Shannon Campbell used one of those for his first couple of rock crawlers if you have heard of him so they will do the job, just a lot body weight involved and a floor mount is an absolute.
I have used a JMR and an RMD both and didn't like either since it was really hard to gauge your turns and make repeat bends and the head of the pipe tends to slip putting your bend in the wrong place (just my experiance, Jessie James seems likes his RMD I think)
Depending on what your bending you might look for an old Pines or even better one of the old Hossfeld CNC's that are floating around, I have seen several around the Phoenix area. I think Davis Salvage has Hossfeld that just needs a new pump, I think they wanted $500 for it (very rough but with sandblasting and a new pump and paint it would be like new again, it's a bender, not a cadillac).
I almost forgot, Precision has both a Mewag and I think an newer Wallace available for probably 1/4 the new price.
PM me if you want to know more....