Pellets are available from a number of sources because they are popular for use in home heaters, so if you are worried that you will be buying a gizmo that might be worthless someday if the pellet supply runs out, it is unlikely. As more and more pellet grills appear, and word of their excellence spreads, sources for pellets will become numerous. I've even heard of a few Home Depot's carrying them. The bad news is that I have tried several brands and I always return to BBQr's Delight. They seem to have the least sawdust, so they are less likely to clog the auger, and they have a higher percentage of the flavor wood on the label.
In 2008 there were only two consumer pellet grill manufacturers. Today there are dozens. The market for these relatively expensive devices is small but growing fast. Not all of these small manufacturers will survive. Forget the warranty and ask "When it breaks will the manufacturer still be in business?" They do not have repair shops near you. When it breaks will they be able to diagnose the problem over the phone? They may be able to figure it out, but then you have to buy the replacement parts and do the repair work yourself. Are you up to the task?
Editor's Note: If you're looking to upgrade your backyard cooking setup this summer, you're probably in need of a little advice. We're longtime admirers of the folks behind AmazingRibs.com, the site dedicated to unraveling the science of barbecue and grilling. Please welcome back Max Good, the only person in the world whose full-time job is testing, rating, and reviewing grills and smokers. The database he maintains includes over 500 grills and smokers, ranging in price from $30 to $50,000. When it comes to barbecue equipment, nobody knows it better.
PID: For the most precise temperature control, some pitmasters feel that a grill with a proportional-integrative-derivative (PID) controller is the way to go. A PID controller uses algorithms to keep the temperature within a couple of degrees of the setting. It doesn’t use fixed cycles to release the pellets. Instead, the controller only adds pellets when it’s necessary to maintain the desired temperature.
With 440 square inches of cooking space, an auger-fed pellet delivery system, and a digital LED thermostat and controller, your cooking will be simple, whether it’s burgers, a whole turkey, or racks of ribs. The side shelf is a convenient place for cooking tools or plates while the bottom shelf can hold spare bags of pellets or jugs of sauces out of the way.