If Traeger ovens were all one cubic foot, well-insulated boxes containing a high speed convection fan, I don't think there'd be much of a market for using a wireless probe to measure the ambient temperature inside them. But the ones they actually sell are comparably drafty large cylinders that don't heat nearly as evenly as a something like the BSO or APO, so having multiple probes measuring ambient temperature at different points inside the oven is not the worst idea. I think the main thing though is that people hate wires in this day and age. If you can pop multiple probes in multiple pork butts and monitor them on your phone inside the house, that's a much nicer situation than having to go check on your wired probe every 30 minutes or whatever.
Anyway, I see the appeal of using a wireless probe in the Joule Oven, but again am not super sold on how beneficial having a probe that measures the ambient temperature would be (assuming that the oven is as accurate as it seems to be). The Combustion unit's multiple sensors and predictive timing is a different story altogether. It'd be cool if they could integrate that with the Joule Oven software, but I'd never buy anything on the basis of unannounced features based on the promise of updatable firmware.
I will follow the development of the oven and app with much interest, but I just pulled the trigger on the non-Joule version which I'd been planning on buying anyway. With the sale price, I couldn't see paying the 43% premium right now. Maybe in a year or two I'll upgrade.
