Back when Fry's Electronics actually had hardware in stock. The last time I tried to get something at the North Phoenix location, it was pitiful and I couldn't find what I needed. I hadn't been there for years and wound up having to wait 2 days for Amazon anyway.
FWIW, I haven't been to the Phoenix Microcenter yet, mostly in that I'm afraid of how much I might otherwise spend there.
Dave's site has an article on Fry's: https://dfarq.homeip.net/what-happened-to-frys-electronics/
They only had one in Illinois, about seven miles or so from Micro Center, and it was one of the earliest to fold.
Once upon a time, I had brick-and-mortar Tiger Direct, Micro Center, and Fry's stores all within an hour's drive. Micro Center is the last one standing.