Recapping older radios

Hello all,

I'm wonder if I should have my two thirty plus year old radios recapped. They both seem to be working okay. They're never been modded or "tuned up" in any way. I think this has a lot to do with why they've lasted so long.

If I don't get them capped and there is a failure could the damage be more serious?

Thanks for reading my post. Good conditions to you all.