A PID is not a necessary item for making great food. They do help you make great food, but you can make great food without one.
Make some meals enjoy your smoker, after a while the Auber will be back in stock. At that time you may still want one, but perhaps not.
Some folks enjoy being technical, some freak out over temperature swings. To those folks the Auber is the ultimate Q Tool. Personally I haven't started drinking that Kool-Aid, I'm too busy eating great Q.