Doug, if you list your location, it might help? There is little savings over new, as the units just keep going and going as they say.
Used or new, you will not be unhappy making the leap. I have two of them and they are simply precision machines. I also have a Mec 9000E that I enjoy using, but it is like comparing a VW to a Bugatti. Both are transportation, but not quite the same.
I wish you luck... here was what happened to me... 6 years ago I was hunting a used PW.. (all i could afford). I looked for about 3 months and finally my daughter was shooting so much i could not keep up with my mec anymore.
I purchased a new PW 800+ and within a week 3 PW's came up for sale within driving distance from me.... So with a new machine i have had no problems at all...