I know my pipes and tobacco would register on the ordinary side in terms of resale, although I have a few treasures in both categories. But looked at differently, many of my pipes are discontinued brands, shapes or series, and a number are artisan hand-carved and couldn't be duplicated. About half my leaf is discontinued or requires one specific retailer anyway, and some has aged quite a bit since I got it. So from one perspective, I have a rare collection and stash difficult to duplicate, or at least it would take some considerable doing. It's mostly the product of chance and time, but so it seems. How about you?