Best Buy offers the Nostalgia Electrics Star Pop Hot Air Popcorn Popper in Blue, model no. SPP500BLUE, for $19.99 with free shipping. That's the best we could find by $2. (Most merchants charge $25 or more.) It uses hot air instead of oil to cook and it comes with a kernel measuring cup.
Walmart offers the Nostalgia Electrics Vintage Collection 48" Movie Time Popcorn Cart, model no. CCP399, for $79 with free shipping. That's $20 under our June mention and the lowest total price we could find by $21. It features a 2.5-oz. stainless steel kettle with built-in stirring system, storage compartment, utility shelf, and tempered glass windows.