we just agreed to let the government pay us to print up 700 billion more. Another 70 would be chickenfeed, especially considering we don't actually print it anymore, we just type it in.
If you want to impact a tax and spend government into an economic point of no return, why not tax free munis instead?
You are investing in something that doesn't produce anything real, you remove any interest that the floating money will create that can be taxed, and you lull the spenders into a sense of security. Hell, even if you pull out after you get to the break-even you still have your mattress money.