I'm in the same boat with my goofy collection of firecracker packs and labels. The big problem there is on eBay where a rarity shows up and goes for an outlandish price. Then if the seller has duplicates a wealthy collector will swoop in and buy everything the seller was going to put in his next offerings. Poof! Gone. Good for buyers as they pick up trading stock, but bad for them as if they try to resell no collectors will pay nearly as much as the original sold for, now knowing that more examples exist. Collecting is still fun though, and we have a fairly long list of "one-offs' that includes the only known examples of some of the 'brands' once on the market.