H3's are selling 2x H2's quantities and many H3 buyers are trading in non-GM vehicles.

I am one of the H3 buyers that traded in a Toyota and had never owned a GM vehicle before. I can afford an H2 but never wanted to drive such a huge vehicle on a daily basis. I prefer to use my Porsche as a weekend toy and the H3 as my daily driver (with some light offroading and ski trips occasionally).

I scored an H3 over the July4th weekend when my wife liked it so much that she offered to pay for 1/2 the cost. So I traded in my Toyota Highlander and drove home the H3 that weekend.

S.