For the most part I concur with your observations. I frequent the Ebay BP revolver parts section regularly (every couple of days) looking for good deals. I am on SS and have very limited "mad money" funds at my disposal, so my purchases are infrequent. There are good deals to be had: for example, presently there are two listings for Pietta 1851 Navy .36 plain (unengraved) cylinders at $45 and $60 respectively. VTI and Taylor's are asking ~$100 for them. Since Ebay no longer allows complete guns to be offered, some sellers have resorted to disassembling them and stating that they are parts to be sold as a lot, presenting them all in the same photo. Some day Ebay will catch on and disallow that form of listing. The listings that have exorbitant prices for parts are just gold diggers fishing for uninformed buyers. Most say "used" but look like new and probably come from new guns bought from sources like MidwayUSA (et al) during a sale, and just disassembled to sell piecemeal.
My other peeve is about Gun Broker. In the past year or so in the BP revolver section, there are very few used repro guns for sale as the smaller dealers are using GB as a proxy website to sell their wares, and always use a single stock photo from the manufacturer website to display their wares. Very obvious when one sees a listing that has a firm price and also states that the are X amount left in their stock at that price.
Another thing is that there are very many sellers of used revolvers who think they have a gem in the raw and ask pie-in-the-sky prices for them. Presently there is a listing on GB for an Uberti 1848 2nd Model Dragoon (date code AP/1986) for $525. It was original listed at auction for $575 minimum bid for 2 weeks, and the seller is an antiques dealer with no other guns offered on the seller's site. I have no idea where they derive their asking prices.
https://www.gunbroker.com/Item/843663771
There are some good deals to be had on places like ProxyBid, but it is a combination online/onsite auction house. Normally, an item is put up online 2 weeks prior to the onsite auction, and bids will be accepted online until the hammer falls. The kicker is that if you want to bid online, you must supply PB with all of your CC info, and I am a bit leery of that in this day and age.
As I like G.U. (Gregorelli & Uberti) guns, here is a rare find:
https://www.proxibid.com/Firearms-M...REVOLVER-w-WOOD-STOCK/lotInformation/50850014
With that, I am off topic.
Regards,
Jim