Today, I came across a Matt Chan Barbell listed in Boulder. Black/Black never been used barbell for $400. They are currently out of stock, but cost $395 new and with shipping and tax, I would agree with the lister's price of $430.46. While I would prefer the Black/Chrome, this little beauty may end up in my house. As of 11/9/2020 it was posted 9 hours ago.
I also spotted a 15 kg Bella Bar for $180. This one claims to be used about 5 times in a normal workout. $180 is 84% of retail ($215). If you include shipping and tax you are talking 72% of retail ($250). I may have to take a look at this. As of 11/9/2020 it was posted 25 days ago.
The other oddball item was front loading plate storage. I had never considered this, but it would certainly work for me and the price of $120 in Arvada is perfect. It is 38" wide, 24.5 inches deep and 54" high. As of 11/9/2020 it was posted 12 hours ago. Kind of a weird title "GYM - CROSSFIT RACK FOR PLATES & BARS" The only reason it showed up for me is because I search for crossfit.