The problem is... now for anyone looking to pickup a slightly older used/surplus server rack - you have the go and buy the (now marked up) RAM separate.
So... did they list the "0GB" racks with removed ram cheaper you ask? Nope. Many of them seem to be basically the same price as they were or even higher than they were, except now you're paying for RAM separate.
I bought a surplus Gigabyte server about 2 years ago off ebay for a home project, and I just went and the same seller still has some for sale, even older now than they were when I grabbed one, but they are 2x the price, and they don't come with any RAM, whereas I got one already populated as they were from the factory. Once you add that back in literally looking at 150-200% markup in the last 2 years on what was just surplus computer equipment that is 5+ years old.