Rocket retrieval

  1. Get the rocket safely back to earth
  2. Transport rockets via a ship
  3. Disassemble and move them on port
  4. Pack, cover and send them back to hangar
  5. Inspect, clean and replace the parts
  6. Reassemble and move them out to different warehouse
  7. Maintain the rocket till its next launch date
  8. Send rocket back to flight hangar

These processes (and possibly industry) literally did not exist years ago. It's a completely different challenge.