OT: 100 Copy Limited Editions

Could someone explain what is going on with these books!

They look like they are terrible quality regular hardbacks with 100 limitation (Although seemingly unnumbered). I see them absolutely everywhere online! I've even seen one signed by various Apollo astronauts! I have no intention of buying them, I'm just perplexed that there is an extremely low limitation product with what seems to be terrible quality and design.

I'd never noticed them, but the quoted publisher is "Royal Classics" of Vancouver, Canada, and at the top of every other page of the text in a file I just glanced at is "Engage Books" followed by the title. So I rather expect that Engage Books, also of Vancouver, offer standard editions of the books under their own name, and the higher price (£25 for Emma on Amazon UK) buys you a cheap trade paperback in a tackily ostentatious hard cover of sub-mediocre design whose main selling point is that only 99 other people in the whole wide world can own a copy just like it. Folk can be found to buy the strangest things.