Maiden stays a week because it has a loyal fanbase, and on 1000 fans, there come a few people, that will just buy it like "ah, i know them, they did some good stuff, i could buy this, give it a try". So we, the fans, we buy the record as soon as it comes out, and after we do it, nobody's left.
Face it, Maiden doesn't produce accessible music. Average Joe doesn't want to listen 13 minute song about some ancient sea-faring curse.
He wants to listen to catchy commercial beat with cheesy lyrics. Don't get me wrong - i don't think that music preferences relate with IQ or smartness. I know some people that are really smart and good human beings, everything on spot. However they listen to domestic shit music that even American pop can't be compared with.
When i ask them why do they like that crap, they say that it's fun and they like to go to those clubs, have a drink, dance, etc.
I don't agree but i perfectly understand.
However, there is a social difference. We might not be necessarily smarter, but we have a lot more heart, and a lot more critical viewpoint of the things around us. Talking about people that really dig "alternative" music, where metal and Maiden also fits. We don't follow trends and we won't eat every piece of shit that comes out of record industry's asshole. When i go out, i see a lot of kids looking just the same, listening to songs that are just the same, by female singers that all look the same. That's why i mentioned critical thinking. If you are a sheep in a herd, you don't think differently.