Honestly, if I can get 9mm Federal and Remington-UMC ammo there on sale for about $10 a box like I did a few weeks ago, I'll keep shopping there....and encourage Dick's to return to the gun business.
...although ironically, my local Dick's is in a "no firearms" mall.
I have bought a few things in Dicks - no guns. However the items I have bought will be the last sales they ever make to me. I'm sure my son's and friends will also boycott the place. Since their sales is mainly to sportsmen, I doubt they will be in business much longer.
Yes, by all means keep on giving them your money. They could care less about the 2nd Amendment