Personally, I think page counts for eBooks are pointless. I own a Kobo Libra H2O eReader and I have never managed to get a page count that matches the information listed on various sites. I don’t fully understand the reasons behind the discrepancy, but I’m guessing it relates to Adobe Digital Editions, make and model of eReader, text size, etc, etc.
Obviously, there are no physical characteristics for an eBook apart from the cover image.
I would like to see the page count, dimensions and weight fields disabled when the eBook Format is selected when submitting an Edition.