The die is cast and the large Breville Smart Oven, Best Buy, $110 CDN dollars off at $239.00 (plus Ontario sales tax...arrgghh) has been purchased. The Oster was returned to Costco and none was in stock. We have 30 days to do whatever we are going to do about the Breville and be able just to return it to the store or buy a two-year warranty which Consumers Report says is usually a waste of money and the very first thing is to check the oven against our oven thermometer (which currently at least is more or less accurate.)
And thus we go forth.