I bought the 2007 Unofficial guide book for our 2007 trip. Now I am planning our 2008 trip. Is it worth buy the 2008 book if I know where I'm staying and have all my ADR planned?
I buy the UG about every 2-3 years. USUALLY, the information is not significantly different from year to year, but I do like an updated version every now and then. Another thing I do is on the years I don't buy a new version, I borrow it from the library - just to make sure I'm not missing out on anything.