This thin gaming laptop with a GeForce GTX 1070 is on sale for $1,299
https://www.pcgamer.com/this-thin-gaming-laptop-with-a-geforce-gtx-1070-is-on-sale-for-1299/
About the only way to score a mid-range or high-end GPU without paying through the nose is buying a prebuilt desktop or laptop. If you're in the market for the latter, one option worth taking a look at is this 17.3-inch thin and light gaming laptop on Newegg.
The Asus ROG Strix GL702VS-AH73 is on sale for $1,349 (down from $1,699), and if you use promo code EMCSPRRX4, the price drops even further, to $1,299.