I like retro stores, but if they use ebay prices and add a few dollars to make profits, they are doing things wrong. Back in the days, when ebay or the internet wasn't that predominant, they could get away with this kind of practice. But nowadays, collectors have soo many options to buy games that if the retro sellers do not adapt, they will fall quickly.
I prefer going physically in store to check games around and buy it right away. the feeling that you might find a gem for cheap is great, but usually in Canada, in retro stores, i dont even feel like going to the stores, i might as well just sit down for a few minutes and check the options online, its cheaper and I dont have to drive to those remote place.
Also i dislike the attitude that most owner of those shops give me. They give me that "i'm superior to you" attitude all the time when I ask questions about games and pricing... I don't know if i'm being unlucky, or its maybe a french canadian thing, but this also doesnt make me want to encourage them to stay in business.