We're already close to that point. Low to mid-end AMD cards are already available at / below MSRP (e.g. 6600XT), and nVidia cards no longer command a > 2x premium across the board.

At the height of the craze, I saw a five-year-old card, the GTX 1050 (not even Ti!), going for over 200.

https://pcpartpicker.com/trends/price/video-card/

From February: https://www.techradar.com/deals/looking-for-a-gpu-dont-buy-y...

Yep, the secondhand market is getting flooded.