If you're looking to get in between 500 and a grand, I'd give a hard look at the Green Mountain Grill, Daniel Boone. I had a Traeger and couldn't take the temp swings. The GMG DB that I now have has 1 to 3 degrees of temp swings. It really is amazing. And, the customer support is also amazing. It's well built and well supported. The new digital controller has a remote pellet alarm available, as well as a built in meat temp probe.
NorCal Newbee Smoker...MAK2, GMG DB, WSM 22, Primo XL.