Yeah, all of our Petcos here in SA carry the Zilla 1K but they are $10 higher in the store.
You might be able to take that POS rheostat to a petsmart or petco for in-store credit I know petsmart carries it.................I have 2 that wont drop below 98 degrees! Though with that rheostat and a lamp dimmer together I have VERY touchy temp settings and can adjust by .01 degree with ease