I think it's just lame laziness or unwillingness of the publisher/author to pay/authorize the cover. Ever bought a paper book without a front cover? Don't think so.
If I get such an e-book, I use Calibre's editor (previously, Sigil) to replace the generic file. This only works if the book is de-DRM-ed or has no DRM to begin with, though.
Although I don't use covers on my reader (for now), all my books have covers in Calibre.
|