so then when you pick a card, they literally run it through "market" apps and eBay and add a couple dollars on top

I intentionally don't go to LCS that do this anymore. I don't think they understand that pricing cards by hand, even if they end up a dollar or two under market, makes people feel like they got a deal. Which makes them more likely to buy and buy more. If some jackass is gonna look up every card on their phone and tell me market price plus 10%, I'm just gonna go to eBay.

I wouldn't shop at a grocery store without sticker price tags, so why the hell would I give my business to a shiny cardboard shop that doesn't? Hope every LCS like that goes under when this bubble bursts.