I kind of like the bastard stepchildren of the 90s, so I've got sets for the Master System, 32X, Turbografx, Saturn and Jag, and am working on Sega CD, CD-i and 3DO. The good thing about collecting for the Jaguar is that there's still a bunch of new old stock from dudes like B&C Computervisions so it's easy to piece together loose games and there isn't that much demand, although prices still have gotten much higher than they should be. All the Songbird/Telegames stuff make the parameters of a "full set" kind of fluid, but for me I just went for games that came out during the release window of the system (Cybermorph through to Fight for Life). It's a fun system that I enjoy digging through since so many games are unsung and unique to the system. Over the years I-War has surprisingly been my favorite, I love that cell shaded virtual spareseness and the music tracks kick ass.