I regret giving away my IMSAI 8080 S-100 box a little over 15 years ago. I should have looked on eBay. If I had, I would have known how collectable they are. I may have been able to get a few hundred bucks for it anyway. It was still in working condition, but all of my (8") boot disks were destroyed by humidity. It booted a few times, but then didn't. While troubleshooting, the disk drive ate all the remaining boot disks.