Oh tell me about dilema! My to-be-read pile is fast reaching 500. It almost takes more time for me to decide which one to read next than actually reading one! Every time when I finish one book I'd pick up several books in turn to read a few pages and finally settle down with one. Usually it depends on my mood. I keep about 20 books on my bedside which are the immediate to-be-read pile but subject to change at any time. Some others I can wait till not-so-near future but the majority are just shrieking at me from the shelves.