that makes sense, but i would drop the limit to about $10,000. Given that interest rates are so low, and dividend rates also being low, it would mean assets in holding of at least several hundred thousand dollars to get that much interest before having to be taxed on it, and that should be enough shielded money to get people through most catastrophic events that might be uninsured.
For retirement, it isn't taxed anyway until you use it, or put it into a Roth.