Well, in general , in Canada, it's much easier to pick up any model DSLR Canon or Nikon...or Sony.....than a Pentax.
That's been my experience in the past 3 years particularly. Yep, you can order them in and it takes 7-14 days shipping.
But what if I want it now. If I want a D 750 or a 5D3....I have a good chance of getting it now, in a major city.
I stuck with Pentax, because I've always had them for near on 50 years. But if I was a young guy, just getting into photography and Canon, Nikon, Pentax were just three camera brands to me...I'd more than likely get what was available...right now...in most camera shops.
I worked as a salesman back in the early '70's.
My mentor told me then....the universal code of the salesman. Here it is...drum roll
...please....
Ricoh-Pentax take note.
You can't sell from an empty wagon.