Would you be disappointed if next gen base hardware don't do 4K native minimum? (400-500 USD)
Target price would be $ 400-500.
I personally don't mind lower than native 4K if it reasonably gives more stable framerates and better image qualities such as lighting, shadows, particles, object qualities and even physics/animation.
In Theory: Should Next-Gen Consoles Focus on 'True 4K' Rendering?
Old but probably relevant DF video.