Folks having earned income might wish to google the term "Health Savings Account." These are not popular yet --- but to me are the best of both worlds. Just went into law last year and almost like a Health IRA. These grew out of the old "Medical Saving Accounts" but are better. It's like keeping your premiums if you don't go to the doctor that year, yet you're covered for anything catastrophe. You pay out of your HSA for up to your deductable -- which is high -- but certainly no higher than when you pay your own full premiums. Not everyone is eligible and HSAs must be coupled with applicable high deductable insurance plan, but looks very compelling in my case.
A family could sock away over 5k each year tax-free and the unused portion grows into a tidy sum by retirement age. Various investment vehicles are allowed in the account. Then at retirement, you can use the funds for anything you wish -- not just medical, as you'll be on Medicare. Taxed at your income level when you take out after retirement. Bush got this passed to provide more control over your own health costs, and it reduces frivalous doctor visits (I've got the sniffles! or duh, doctor, I have corns on my feet) and actually could add up to some nice dough by retirement age.
Blue Cross/Blue Shield is expanding this and that means even more insurance companies will follow their lead. Your current insurance company may even offer them. I'm still researching but looks very interesting so far.