This might be true. On the other hand though, I'm the kinda guy who will quite literally enjoy anything (with exception to modern country, most reggae, bluegrass, and some modern pop shit like Rebecca Black). I have yet to find a Maiden song that isn't at least a little enjoyable. Some of the weaker songs are still good overall, for instance, Fear is the Key is a terribly flawed tune and the worst on FOTD, yet it's still not terrible enough that I'd skip over it when I give the album a listen. So you might be right, but on the other hand, maybe they just do write good songs.