Try Gart Sports
We usually get our son's ski clothes at an annual ski show - they have all of last years inventory at highly reduced prices. Also we have found Gart Sports to have many 30-50 percent discounts on ski jackets and bibs.
When we go out West to ski, we try to find a Gart Sports and get the items we need when we are out west. I actually could not sell my some of son's items in the consignment shops - I ended up giving it to a neighbor who has a son about 4 years younger. I of course kept his first ski outfit - it is to cute to give away!
Good luck!