I don't know about the Canadian store, but the Miami one hasn't had any in stock for at least 2-3 years, I can't remember exactly when I began monitoring, but I've been watching for quite a while now. Another website - Model Rollercoaster Headquarters (or something like that) sells the Faller kits as well - he told me he hasn't been able to get any for years, has a waiting list for them. There was a European store on Ebay listing the model about a year ago, it was something they were 'expecting' a shipment of, but never ended up getting.
Not sure what the hold up is, but I would say there is something going on.