Walmart offers the Cuisinart 1-Cubic Foot 1,000-watt Counter-Top Stainless Steel Microwave Oven for $149.88 with free shipping. (Amazon charges the same.) That's the lowest total price we could find by $10. It features 25 pre-programmed 1-touch settings, rotating 12" glass tray, and 2-stage cooking operation.

Update: The price has dropped to $145.23 at Amazon with free shipping.