Well by the same token they can just adjust a little and call it a day...I always wonder why people think NVidia won't respond in kind, and just leave their prices high and let AMD take the market share?
AFAICT, Unlike Intel, NVidia always responds to significant pricing challenges.
What exactly is achieved if AMD releases a $600 2080Ti equivalent, and NVidia then drops their price into the same ballpark? AMD just ends up losing a pile of money needlessly.
Nvidia taking in a much larger drop in price is that much more difficult of a decision.
For AMD the road is up either way, as they control little, the decision is easier. Its a gamble, but much less so.