I wanted to get the ET-732, but since I just started smoking I didn't want to spend more on a thermometer than I did on my smoker. From what I've read the ET-73 is still a good thermometer and for less than $34 it is a decent deal. I figure that when I graduate to a nicer smoker I'll get a better thermometer and by that time there may be a better alternative than the 732.
So now I've got to find a good rub recipe for a whole chicken because that will be my second smoke. I need to decide if I'm going to spatchcock the chicken or smoke it whole.