Pellet Smokers - Flavor Quality

Thanks for all the great feedback. I have the Weber Bullet smoker, but I was thinking of getting a GMG for longer cooks like pork butt and brisket. I've cooked both on the Weber, but having to get up in the middle of the night to tend to the charcoal is a hassle - a worthwhile hassle, but a hassle nonetheless.

Now I'm on the fence.

Y-Guy - where do you get your pellets?