I too abandon books if they don't pull me in. Sometimes I return if something gets a ton of accolades and sometimes am rewarded but sometimes not.
Huge fan of Daniel Pennac's Reader's Bill of Rights:
1. The right to not read
2. The right to skip pages
3. The right to not finish
4. The right to reread
5. The right to read anything
6. The right to escapism
7. The right to read anywhere
8. The right to browse
9. The right to read out loud
10. The right to not defend your tastes
Ooh, there's this supplement as well, from blogger Kiera Parrott:
The right to read at your own pace.
The right to choose whatever book you want.
The right to read graphic novels and manga.
The right to read magazines.
The right to read non-fiction.
The right to not like a book.
The right to read books published for different age levels