Capitalism at it's best.
As unfortunate as it is, there is a limited number of used guns sold up in NorCal which then drives the average listing price by at least 25%.
I do find it funny sometimes when some sellers think their "custom slide/custom/barrel/stippling job" inflates the pricing of the firearm overall; laughable really.
Seller: "sir, you're telling me my G17.3 with non-OEM slide/barrel/pockmarked toothpicked frame from some brand that most wouldn't care to even Google is worth
less off roster?!"
Buyer: yee
When the time comes where I'll sell my Glock models, the least I could do is to throw in a complete slide given recent legislation.