Ah, that is the difference between someone who collects for the appreciation of the item, and a reseller who is only looking to turn a fast buck.
I got started on a camera collection, while living near Rochester, NY, back in the 70's. At garage sales, I found a lot of old Kodaks, from ex-Kodak employees. most had original packaging, and flash bulbs, cubes, etc. Most are worth little. But, the toptality of my collectgion today, is worth several times the sum of its individual parts. Only Kodak has a more complete lot...
I have so many duplicates, that my grandchildren use them as toys...