I desperately want a PC Engine CD-ROM2 peripheral.
If you don't know what that means, here's a photo of said system (connected to the original, white PC Engine console):
I know what some of you are thinking: That doesn't seem all that insane. Plenty of people probably want a PC Engine CD-ROM2 peripheral!
I'd love to agree with you, but I can't. Why? Because I already own a PC Engine Core Grafx II console and its piggybacking Super CD-ROM2 peripheral. (Here's a photo of both of them, and here's another.) As such, picking up the original CD-ROM2 attachment at this point seems at best a bit silly and at worst completely bonkers.
Still, I want it. As for whether or not I'll ever actually acquire one, well, that's another question entirely...
See also: Other reasons I could be considered an 'eccentric' (aka bat-sh*t crazy) gamer