Pellet grill vs. smoker: Which one do BBQ experts recommend?

Warm weather and sunny skies seem to put everyone in the mood to cook outside, potentially with a cold beer close at hand. But, as you're daydreaming of trying out a new smoker to cook the perfect pork butt, or a pellet grill to make a savory dinner of grilled fish and vegetables, it's a good idea to think hard about what needs to be added to your patio's arsenal. Are you interested in dabbling in the world of smoking meats for the first time? Or are you a seasoned barbecue boss who wants to upgrade to a better pellet grill or smoker this summer?