I used to have this philosophy--that no matter how tedious or boring the read, I MUST finish the book. Who made up the rule in my life, I don't know, but I've long since abandoned it. I simply don't have the time to spend on a book that doesn't interest me. I'm sure you all do the same thing. Time is a luxury, after all, no matter how cliched that may sound. With two young kids (soon to be three) and a household to run, plus my own writing pursuits, I have to be Picky.
I used to think that being a writer ruined reading for me. I mean, as writers we're already so hyper-aware of the rules we've encountered while learning the craft of writing.
No adverbs!
Use only the dialogue tag 'said'.
No info dumping.
No unnecessary adjectives.
Kill your darlings!
Believable dialogue
No comma splices...
And so on and so forth.
But sometimes there are books that just make me swoon so much that the internal editor never bothers to show up its face. I can read a book in one sitting (especially when I'm sick and I have a valid excuse not to do the dishes piling up in the sink). Or, if one sitting is not possible--after all, someone's got to feed the kiddos around here--then in two, or three. The thing is, if a book stays on my mind and I'm itching to get back to it as soon as I can, then I know it's a winner! For me, anyway. Reading is ALWAYS subjective.
What about you? Are you selective, too?