That's silly. Many things are not worth what people pay for them. Bid-up penny stocks come to mind. It's the same thing for houses. If numerous houses in an area go for $500k and someone gets caught up in the heat of the bidding war and pays $575k for a house, that doesn't mean that the house is worth that much, because likely you would be unable to turn around and sell it for the same amount.
I know you're a real estate agent and you're biased, but you have to be objective.
As to the OP's question, wait a year or two. You'll be able to buy most houses in the GTA for probably a $100k less than what they're going for now.