Wow.. and how many Leicas? I love to see people's collections. But I decided against collecting myself a few months ago. I now use my m8, m6 and Hasselblad 500cm, with a Nikon FE2 as a spare.
The joke is that I don't collect any more, but bear in mind what I do for a living. These were acquired as users, and superseded (or are still in use), or were bought for 'Classic and Collector' articles in Shutterbug. A few I inherited or was otherwise given. I just very seldom get rid of things, but for an account of the most recent camera to go out of the door, see
http://www.rogerandfrances.com/subscription/konica sIII.html -- ignore the typo of 'yelloe' instead of 'yellow' in line 4 (it went up yesterday, and the web-master hasn't fixed it yet). Last year a Werra 3 went under the same conditions.
Leicas are a IIIa (my first, kept for sentimental reasons), M2, M4P, MP, M8, M9. I'd cheerfully sell the M4P but it's in such disgusting condition after 30 years (25 of them used hard, before I got the MP) that I doubt it's worth much.
But (for example) I have five 4x5 inch cameras (Gandolfi, Linhof, Toho), two 6x6 SLRs (Kowa, inherited, Pentacon Six, bought in Prague for a C&C column), two rollfilm rangefinders (Graflex XL, bought for its f/2.8 lens to test Delta 3200, and Polaroid 600 SE, gift from Polaroid, with roll-film adapter back), and a top-end scale-focus wide-angle rollfilm camera (Alpa). And probably about 5 Nikon Fs.
And so on, from a Chadt (the smallest camera ever to take Minox film, a review camera) via Minolta 16, Olympus Pen W, Retina IIa, Pentax, Exakta and other full-frame 35mm, 5x7 inch Gandolfi & Linhof, 8x10 inch De Vere, to a 12x15 inch Gandolfi.
Cheers,
R.