I think they just sell stuff for the regular retail price during the year (maybe just slightly discounted) but after the season things are very discounted. Every summer they have an amazing tent sale where everything is 30-70% off. They sell off all of the previous years stuff to make room for the new stuff. That`s the time to go.
If you`re coming into town anyway - it`s worth the slight detour to go - it`s a pretty neat shop. But I don`t know if I would make a special trip for it. I suppose if you combined it with a trip to 5 spice cafe that might make it worth it......(mmmmmm 5 Spice)
Hope that helps