I wouldn't consider myself a geek personally, but I do have an unhealthy obsession with video games and it is one of my largest personal hobbies.
I have most every single video game console from NES all the way up to the latest generation. I also modify consoles as a hobby and have converted an arcade Neo Geo PCB into a console, modified a Sega Genesis to output s-video, modified a Dreamcast to output 15k/31khz RGB over the same SCART cable with a switch, modified my Famicom to output RGB, among other various mods. I like solder.
Some would say it's unhealthy, but I am one of those purists that loves to play things on original hardware. The minor hiccups emulations bring about annoy me to the point where I can't enjoy playing the game. I even imported a device from Japan that scales the resolution from my old video games into HDMI to deliver the crispest image possible. I mostly use flash carts to load "roms" onto systems to save on space and money, which allows me to pretty much play every single game for every single system sans the latest generation.
As you can see, the scaler makes my NES look as good as an emulator.
Not only that though, this scaler can even mimic how CRTs look pretty well.
I even have the land of the misfit (mostly Microsoft) consoles I don't ever use and sit in storage. I should probably get rid of them.
And I even dedicate some shelves to my games just because I'm that guy.
One last fun fact: I'm a hobbyist in breaking security of hardware. There's some stuff I can't talk about but if you use OSX86 on a computer myself and another guy were responsible for breaking open the encryption used on their core binaries from the smc, which allowed the leak of the private key that allows vanilla OSX86 a possibility.