Thanks for having me. I have been lurking this site for a while, I got a lot of info on the steelbook end from here.
The only complete Retro collection I have is Sega 32x boxed. I'm about 15 away from TG16 and 40 away from completing NES. I think master system is relatively close as well.
Yes it's a MAME machine, just a emulater hooked up to joysticks and buttons.
There is a YouTube video I made showing off the room and I briefly mention the arcade machine and another video of my retro collection.
I had a site at one point but it's down, it had all my lists of what I have and need. I am working on getting it back soon.
Typing this on a iPhone blows BTW, please forgive spelling and grammar...
Now I'm rambling
Matt