i think the keyboard is a very versatile instrument, and whether or not it sounds cheesy really depends on the musician and the gear. unlike other instruments, IMHO the quality of the sound patch affects the overall feel to it. but i've always envisioned a bunch of keyboardists making up the different instruments in a band, perhaps with an extra keyboardist to fill in parts and do more complicated passages.
but you're right iansoh, it depends on ur influences.
i believe in emulating other instruments in a band, it makes us better keyboardists.