Ikea.com has their Tillreda portable induction hob at a "Last Chance" price of $49.99 which is well priced for an 1800 watt large 12 x 15 model from a reputable retailer. Weight is 7 lbs which suggests a higher quality unit. Works with any cookware a magnet will stick too including cast iron. Operates from a standard 120 VAC wall outlet or small generator.
edit: "Last Chance pricing" typically means a discount but not here. It's discontinued at the regular price. Thank you TunnaNugget.
Popular uses for PICs: As a main or extra burner heats much faster while conserving energy. Outdoors on deck patio keeps kitchen clean and cool. Dorm, office. Emergency preparedness and camping with one of the new hand carry generators.