Cheap GPUs on Secondary Market - Has Anyone seen this?

I’m interested in buying my own HW, and have been encouraged by recent news of a second-hand market flooding with GPUs. Has anyone been able to take advantage of this in buying or building your own equipment?

I saw this post today. I think I’m gonna try it out first.

Bought 8 GTX 1080s for $250 each. Kept 2 for personal use and sold others for a profit. Pretty good deal imo