Walmart offers the Black & Decker Dining In Countertop Convection Oven in Stainless Steel, model no. TO3210SSD, for $44.97. (Amazon charges the same for Prime members.) Opt for in-store pickup to dodge the $4.97 shipping fee. That's $20 off list and the lowest price we could find by $9. It features four functions, three rack positions, and an external crumb tray. It will hold six slices of bread or a 12" pizza.