I looked at one before I purchased the razor. As I recall my biggest complaint was the endplates on the machine were not stainless, nor were they welded on like the razor. It also has cheaper motors and gearboxes I believe.
Once you start adding the options you want the price wasn't that far apart.
I was thinking I had about $75,000 in my razor. I didn't buy a pumpstand though. I just modified my old one to work which saved about $12,000 if I recall correctly. I also did most of the install myself.
Don't quote me on this but I was thinking the REVV was like $20,000 less