I thought so too, until I went to America just before Halloween and tried so many different pumpkin flavoured things. Pumpkin Pie, Pumpkin pinkberry, pumpkin cake etc etc. It's soo good. Very similar to carrot cake flavour.
I just wish it was easy to get tinned pumpkin in Australia. It's actually better than using pumpkins that you mush up yourself because it's really hard to get a lot of the moisture out.