I'm Dryfter and am a serious INTV collector. I collect everything for the INTV and have some pretty rare and cool stuff. I now have the original 125 games released for the INTV, 122 of them boxed, 3 loose but in replica boxes. I also have all homebrews which have been released.
Some of my more rare items are:
League of Light
1983 Demo Cart (boxed)
MTE Test Cart (un-opened)
All versions of Psycho Stormtroopers Orphan Overlays
If you have any INTV questions, feel free to contact me. I'm always happy to talk INTV and answer questions you might have if I know the answer
I am also a pretty serious collector of TG16/TurboDuo games. I have about 90 unique games in various degrees of completion. I try to pick up new TG games as I can but I concentrate more on the INTV.
Like all collectors, I have a few other systems that I enjoy but don't really collect as well as things to trade. Currently, I have (not collecting or trading) NES, Genesis, PS2, Wii and a 360.