ISS takes up about 15%-18% of NASA&#x27;s budget. It&#x27;s slated to cost NASA about $3 billion per year, at least, through the rest of its life.<p>Is that cheap, as far as hundred billion dollar space stations are concerned? Or is that expensive as far as moving on to new projects is concerned (and having budget drag from a legacy program that will be ~30 years old in 2024)? That&#x27;s part of the debate. Personally I&#x27;d rather Congress give NASA another $3 billion in funding just to keep the ISS until we (hopefully) begin replacing it.