Just wait a bit. 40 series out soon. Hehe.
You won't see a cheap 4000 series this year.
At least the year is 75% over.
Now there is no point in buying expensive video cards, unless you are a professional gamer. For most games, a 5600 ХТ video card is enough for me, which can now be bought for $ 200 or a little cheaper, and the video card will be in excellent condition.