Same here. Plus I have the whole "Overdrive" thing. But even with that--it feels as though 99% of the time, I'll plug the ISBN into Goodreads, and they'll have it. Then over at Booklikes, it's like 99% (or more) of the time, they won't.
I totally understand. I just made a conscious decision a few years ago that GR would be where I cataloged my books and BL would be just for social interaction about books. I just had to compartmentalize to avoid letting this site make me crazy.