It isn't - deprecation of held goods is always a risk and if you're working on consignment then that comes with weird financial liabilities. If there's a flood and you lose your inventory it sucks - if there's a flood and you lose an inventory of consigned values then suddenly you're potentially exposed to paying market value for a number of items in addition to all the site damage you'll need to address. Capacity is one aspect of the costs of holding inventory - but breakage is the much more expensive consideration and consignment just makes it even more expensive.
replyI believe in this case the consignment contract requires the store to hold insurance on the consigned merchandise, which I assume is intended to address this concern.
replyNone of this is a risk with Lego.
replyDepreciation: not going to happen on Star Wars sets that are not longer in production.
Water damage: Lego is water proof.
Breakage: being easy to take apart and put back together is Lego’s core principle.
a large part of the value of secondhand stuff is in the box and packaging, assuming those nice boxes in the image were from his collection - those are a little more fragile than the Lego pieces themselves.
replyEdit: wait, the whole collection was sealed and new in box. Yea, just water damage to those boxes would cut the value by at least 10%. Collectors are picky as shit.
They were sealed in box? Yeah you'd be right that damage would be easy and could significantly reduce the value.
replyI didn't realize people bought Lego to leave in the box. But I guess I shouldn't be surprised because it's a common thing for collectors to do in other hobbies.