No matter how we pay for (or don't pay for) healthcare, it still costs the same. In other words: The same amount of people will get sick and injured the same amount with or without Insurance, Obamacare, Charity, or Cash. Health Insurance is a way that healthcare providers get paid... it's how they receive the money that is allocated for healthcare.
The "mandate" requires individual responsilbilty; that folks pay for the care they will receive. It should be a conservative's dream, and the beginning of a fair solution for liberals also.
The amount of the penalties is not the issue.
Discussing the cost of Health Insurance and discussing that some folks' Health Insurance price might rise or they might pay a penalty, is like arguing about the price of the stamp on your Cable TV payment envelope when actually we're trying to deal with the high cost of cable TV.