There are two sources of "magic":
1. Efficiency. Canadian universities deliver similar/better products at much lower cost. Not just cost at point of use, but actual "amount of money spend annually to deliver education".
2. Financing model. Taxation allows you to fund things without paying interest to a middle man. If you pay off a set of loans whose principle is 50K, but with 5%-7% interest rates, then you're paying a lot more than 50K. So even if the products were equal in price, the taxation model might work out ahead.