Tumblers are about as simple as a press; no secrets, no vast differences between them. A cheap plastic bowl, lid and base, a few springs, a cheap electric fan motor and power cord. Get the least expensive you can find and buy it, how long it lasts will be determined by the motor. None of the "makers" make their motors, they buy them from the cheapest possible source so how long it runs is luck, not the color of the plastic.