So I'm going to build myself a rack. I'm starting with a 2 or 3 shelf jouvenile rack made out of pvc sheeting. As my snakes (and collection) grows, as I'm sure it will, I will likely build another rack for 32 and/or 41qt tubs (adults).

Would it be better to have a Herpstat 1 for each rack, or a Herpstat 2 that just controls both racks, individually, of course.

Is it just a matter of preference or is there any benefit of having it one way or the other?