This past Saturday, Amazon.com stealthily launched a flash sale in Atlanta, Chicago, Dallas, Houston and Los Angeles using its only once-before-seen Treasure Trucks.

Touted as “an ice cream truck for grown-ups,” the engagement model, which was tested in Seattle before being rolled out to new markets this weekend, is unique and intriguing. The truck drives around town with a single “amazing deal” and, when it’s going to be in your area, you get a text on your phone. If interested, you click to buy on your app, pick one of the trucks as your pickup point and get over there — fast.

The launch video for the service eludes to items such as new releases and electronics, steaks and seafood, outdoor gear, toys and more. All you do is sign up and wait for the truck to arrive at a city near you.

The brilliant move we saw with this weekend’s maiden voyage was the choice of lure, which was the elusive NES Classic Edition gaming console. Game aficionados could snag the retro device, which was discontinued a few months ago, at its original $60…