The F80 doesn't meter with non-CPU lenses. The F90X does not support VR. If neither of those apply to your lenses, then both are nice cameras. I have 2x F100 and an F80 and F75. Since I have many VR lenses, it made sense to get bodies that support them fully. All the film bodies are cheap enough that small feature differences do not make a big difference in price and so become a preference decision, not a financial one.