> it hurts my heart that we're dropping them in the ocean
They are functionally obsolete. Chances that we’re still using SLS in ten years is slim. Any resources going towards refurbishment are better spent on Starship and Blue Moon.
And all of that reuse was so expensive that it set back reusable rocketry for decades as the common wisdom said it was uneconomical - even after it was demonstrated that you could have reuse without expensive refurbishment.