I think it in part depends on where you live and the particular vaccine. I will NOT be getting boosters for rabies. I live in NYC, where there hasn't been a case of rabies since the 50s, and my cats are 100% indoors (I don't even have a balcony). Even if they do escape from my apartment, I live on the fourth floor, so they will still be inside.
They have been vaccinated for Feline panleukopenia (also called feline distemper), because it is so infectious. I am 50/50 on Feline Herpesvirus and Feline Calicivirus, which cause most upper respiratory infections. Because the vaccines for FeLV, Chlamydiosis, FIP, and ringworm do not create immunity, I will not be having them administered.
is a good link, though pretty pro-vaccine.
is great too. Pretty much the same info, but with a more vaccine-critical approach.