My first NEC system was a Duo in 1992. Having a system that wasn't Nintendo or Sega back then was appealing, but not that odd for me since I had owned stuff from Atari and Coleco. I later got an Express from a guy at work who used it to watch sports on. Got a Core Grafx for free because it was broken, got a Duo R for $60 because it was broken. Fixed both of these and sold the Express to a Brit on eBay, sold the US system for $120, or something like that to a forum member. Traded the Core Grafx for a white PCE, bought a IFU+CDROM2 from a friend, and that's where I am. The two white set-ups are the coolest, and that's what I have. Eventually I'll have a Supergrafx, an LT, and an FX, but those aren't anything I'm in a hurry for.
When I first started collecting games, I obviously just bought US stuff but drooled for the cool imports seen in the magazines. Then I started renting and buying them from the Diehard Gameclub store that used to be in Michigan. I now have all JP soft except for the pack-in games that came with the Duo. I don't do American releases anymore since they are inferior in almost every way with the exception of maybe a half dozen games, most of which I don't even care about. I do have the US Gate of Thunder 4-in-1, Ys 1&2, and the free Chew Man Few I got from TZD's binder.