No, I often abandon fiction, biographies and such. There are so many titles out there, so many below average writers, that it's hard to find the good stuff. At one time I got so peeved with a writer of a shortish novel I rewrote it as I figured it should have been written (it was a Danish author, me being danish and all). I never heard from him, but in the next round of printing, lo and behold, most of it was implemented.
I have had three persons close to me go "well, if you don't like what you read, why don't you write something yourself that would be worth reading?" - which is all fine and dandy, but there's a world of difference between reading for enjoyment and writing. At least as I would do it: Work. Just like I do as a journalist. Hardly the thing to do a lazy afternoon, ha ha.
Anyway, the least-put-downable* books I read are non-fiction, reference books, theory books etc. But I still only finish around 90 percent..
*I know, but if you can make a sock company named
www.almostunwearoutable.co.uk, why not?