Yes tire options for the 17s are limitless compared to the 20s and $50 or better less per tire.
And if you want 10ply tires on 20s you're damn near SOL
ALTHOUGH I did discover that going from a 60 series tire to a 65 gives you tons of options as it's actually a common size 20.
It's a 1/2"-1" larger tire but fits without rub. (Though I'd expect rub while in entry mode with factory air suspension or on a 2wd platform.) So you go from a 31 to a 32 not a big jump, speeds off by ~5MPH slow at highway