As a teen, we'd drive up from Chelsea to cruise Eastwood Mall, and get Krispy Kreme. For a country boy, I was in a different world.
Demographic shifts hastened the demise of some of these properties, before online shopping was a thing. The consolidation of department stores was a big factor, particularly the old line local stores of Parisian, Pizitz, Loveman's, and Rich's from Atlanta. Losing an anchor is tough to overcome, and losing a locally-based chain makes it worse. I most regret Parisian going away, great products and service, and it smarts worse because crappy Belk took its place.
I've always been interested in watching the shift of commerce in Montgomery from Eastern Blvd (Montgomery Mall and a big box development nearby) was dramatic, to the cannibalization of Taylor Road's retail explosion. Eastwood Mall and Century Plaza much the same, although Bham has experienced real growth compared to Montgomery. If the mall is in an affluent area, such as Brookwood, then it's doing okay. The Summit has sucked traffic from many places, of course. I haven't followed the Galleria for some time, it seems the only time it gets a mention is when there's a shooting.