It doesn't feel Halloween to me without one!
As with all holidays, though, I'm low-key about it - I don't generally do the carving until close to the holiday or on the day. (The difference this year was that with my work schedule as it was, I didn't get a chance to pick up a pumpkin until the afternoon on Halloween, and then didn't get home until it was already getting dark. Thus the 'eh, that'll do' approach!)