If it's in the 2040s or 2050s, and I'm into my dotage and pushing 100, I'll spring for a one-way. They can fill my return slot with someone younger, or bring h

If it's in the 2040s or 2050s, and I'm into my dotage and pushing 100, I'll spring for a one-way. They can fill my return slot with someone younger, or bring home an extra 150lbs of Mars rocks.