I'm curious to hear more about large PC collections and what might be the sizes of large collections in existence? Anyone with 10 or more PCs? 20 or more? How about large collections of original IBMs? IF somebody wanted to have the largest PC collection on earth, how many working systems would it take?
Mine was over 150 PCs (includes about 30 laptops) (Z80 to Pentium 3). I recently sold and gave away large parts of it now, so probably half that.
Actual IBM's: 5150 Model A, 5150 Model B + 5161 expansion unit, 5160 256K, 5160 640KB x 2, 5170, 5155 portable, PS/2 Model 30 286 x 2, PS/2 Model 50Z, 56SX and a 76 (I think?) with SCSI, IBM JX with 5.25" floppy expansion.
I also have about 30 60L containers of software, parts, books, and sealed disks and a full set of dresser draws filled with ISA cards for repairs, and 3 bookshelves of boxed software which helps decorate the house.
Spare motherboards from 8088 to Pentium 3, boxes and boxes of MFM and IDE hard drives etc etc
Only thing I'm short of is CRT's, and that was on purpose as they're difficult to store.
Most fun thing for me is having visitors browse and hear them say "do any of them still work?" and then they jump when I pull the power switch. It really amazes some people.
Also fun to have collectors over and let them rummage for anything interesting they need.