Grandpa's Tools - What do I do?

I recently inherited a lot of my grandpa's tools, this however pertains to his Proto Ratchets and Socket Set. All are from the 70's and 80's, 1/2" and 3/8" sets.

I've always consistently used the tools he's given me since I was young, mostly stout ones such as wrenches, hammers, pliers, etc.

My moral dilemma is this, though: Should I replace the ones in my tool cart with these, or find an old Proto tool box and have his own little collection in them? I don't turn wrenches for a living, just to tinker on cars and around the house. Breaking one would absolutely break my heart, but I love the idea of using the same ones he did. What are y'all's thoughts?

Note: I have a small shop in my place, I have a rolling tool cart but have some shelf space that a couple tool boxes sit on. I have all the tools I could ever dream of, these are just in addition to the abundance I have. I figured I'd keep them in one of his old tool boxes and use them every once and a while, while using mine primarily.