Microcenters in the Chicagoland area (N Elston in Chicago, Westmont) are busy, especially on Saturdays. Shelves are well-stocked, and there's even an electronics section with a potpourri of Arduino and RaspPi accessories.

I'm not sure how they're surviving in the era of online shopping but they seem to be doing well. I wonder if most of the foot traffic is driven by impulse same-day BOPIS (Buy Online Pickup in Store) sales. I'll admit that's how I ended up going to the brick-and-mortar store -- I didn't think that computer superstores still existed in this day and age.