The biggest problem with LCS is that that aren't looking at things like normal shops. Most retail stores are designed to be welcoming to everyone who walks past and even they are struggling, so when you have a store that thinks it has a very niche set of products it seems to hide anything that could bring in an everyman passer by inside.
Here's where we are at... Primark.... Primark... sells more Marvel/DC clothing merch in the women's section of their shops than Belfast's two LCS' combined. It sells. People are into this stuff. But to take that step to actually going into that daunting comic book shop??? That's not something that is comfortable.
If I had an LCS right now I'd either do away with the actually store and have a kiosk in the middle of a mall or have both working at the same time. They get at least ten amazing covers a week on books that would catch people walking past's eye; why keep them inside a store, hidden away?
LCS' clearly aren't going to do anything like this so as soon as a decent pageflix or whatever comes along they are toast in a matter of months (at least until the vinyl-style revival 10 years later).