I like books that are just the right length for the story that's being told. I've read novellas that were too long and massive tomes that were too short. It's the pacing/structure of a book that determines if it's too short/long... not the word/page count. There's a few authors whose 1000+ page books manage to maintain the same intensity/interest level as other author's 300 page snacks.
Page count doesn't really influence me one way or another when it comes to purchasing or deciding to read a certain book/story. I like variety. I just reserve the right to abandon any work where the pacing seems unnatural (or it feels unnecessarily padded)... regardless of its overall length.
I honestly don't know why some authors collaborate. I have no trouble
reading some collaborations, but I think
writing a true collaboration (same book, two writers) would be a hair-pulling, gnashing of teeth nightmare of epic proportions—but that's just me.
