investor, there are one or two logical inconsistencies in your posts. You say that if people didn't buy "sight unseen", buildings would get built "on spec", and you seem to think that this would be a good thing, for some reason which you do not specify.
There is a very good reason that buillding on spec doesn't happen any longer in Toronto. We've seen what happened back in 1988 and 89, when "spec" ruled the day, and the market ran into a wall. I don't know if you're old enough to remember that. It took six years to dig out of that hole.
You seem to acknowledge this yourself, in a backdoor way, a few sentences later in your post
Look at Miami as a perfect example of what rampant speculation can do
Miami, and a few other American cities, exemplify what happens when prjects are built on spec, combined with some very loosey-goosey mortgage lending practices. I'm confused as to whether you think speculative building is a good thing or not, as you seem to be arguing both sides of that question.
As for Calgary, I don't follow their market closely, but I think it's evident that what has happened out there in recent years is the exact opposite of building on spec. In Calgary, demand has strongly led supply, ie., there has been a serious shortage of supply. It's not the least bit speculative to build a new project in such circumstances.
In Toronto and most of Canada, real estate markets are actually fairly conservative. Speculative building is almost unheard of. Memories are long and people remember the blood on the floor in the early 90s. Neither developers nor banks will go there again. Demand is demonstrated by the simple mechanism of selling first (for condos) or pre-leasing (for office space),
then building. Banks won't finance construction unless a building is at least 60% sold, and I am hearing increasingly that the threshold is being moved to 65% or 70%, particularly for those projects which may carry higher risk for some reason (location, short track record on the part of the builder, etc.)
When the market cools, and I don't deny that it will at some point, new sales numbers will drop off, and some projects which otherwise would have been built, won't be. But in the meantime, literally thousands of people remain willing to buy "sight unseen". As I said before, it's not just one way, it's about the only way that new product will come to market. Many of us have actually seen the alternative, and it ain't pretty.