A normal ILS would have a DA about the equilavent of the RNAV approaches on RW14. The problem being the hill to the north of the runway. When landing 14, you get visual at the minima, but because of the hill, the approach is offset, and in reduced visibility, the runway threshold is very hard to see (even with the strobes), and in manoeuvring to final, it is possible to have the approach become unstable, which under most SOP's means a missed approach. It may be possible to get a ILS on 32 with an overshoot similar to the 32 RNAV approach, but a ten mile ILS straight in over the coastal noise sensitive areas would cause the locals to mutiny!