I've had two RFM pin 2000 machines and still have one SWE1 machine. I guess it's just a thing of having something like them in your collection. Many people actually like the play of the RFM better than the SWE1 but the Star Wars tie-in theme brings more people to that one.
One of the hardest things bringing these back is the older CGA CRT they require and those are getting really hard to find. Until your posting I even forgot to put it on my collection list.