Mine stays out and ready to go. I am the most distracted gamer. Meaning that I will play something like the Gameboy Pocket for a while, walk by the Genesis, you got to fire it up, switch to some sega games for a while, then a game on the NES comes to mind. Before you know it it has been a year or more since you have fired up the ole NEO GEO CD.
Recently a guy at work, who owns an AES, and I was discussing the difficulty level of newer fighters vs the old arcade stuff. That prompted me to turn on my NG CD. I got my tail handed to me that night.
I am glad I still own one that works. And I know at some point it will fail. But it has given me the opportunity to own the original stuff on the original Neo Geo hardware. It has some of the most challenging and fun fighters from the old days of arcades. I still play, but not like I did years ago. So looking forward to retirement. (Random memory flash)And that first time walking into the front doors of a K-Mart and there stood a World Heroes cabinet, first encounter with Neo Geo. While playing wishing I had it at home.
Always wanted a CDz. It never happened. Never will. I am very reluctant to put out money for a retro CD based gaming system any more since my Sega CD died.