Humans have been grilling and barbecuing since the beginning of time (or at least the discovery of fire).  Good barbecue is low and slow and requires a lot of babying.  What if technology could help with the amount of time you actually have to hover over the grill?  Pellet grills use temperature, hardwood and a digital brain to allow you to do other things beside sit next to your grill all day.  Plus the pellets are very environmentally friendly.