The Power Metal genre is less popular here in the US for sure. For example as great as the playing is for bands like Rhapsody my friends and I always found them too silly to get into.
Some other bands make the cut of course. But why this resistence to the genre in general?
My working theory is one of culture: Songs about dragons and shit probably resonate a lot better if you grew up in a places filled with castles and shit. That is simply not the US and very much is Europe.