Take into consideration the fact that when they say turning the pages, they probably really mean screen refreshes. Every time anything on the screen changes, it's a screen refresh. Every time you bring up a menu, library, move selection in the menu or library up or down, move the outline around a word when selecting a word to look up, it's a screen refresh. It's a page turn.
So if you read 300 pages, you might actually have many more screen refreshes done.