Elon Musk will do a full technical presentation of Starship after the test vehicle they are building in Texas flies in March or April, 2019. This would be 6 to 8 months ahead of previous announcements made by Elon Musk or by SpaceX COO Gwynn Shotwell.

The Falcon 9 Block 5 is about 80% reusable. The first stage is 70% of the cost and 10% for the waterproof nose cone farings. The farings have been recovered in a mostly undamaged condition but have not been reused yet.

The SpaceX Falcon Heavy has flown once. By May, 2019 it should have flown two more times and reusing 3 first stages and a faring would be over 90% reuse.

The Block 5 boosters should be reusable up to ten times before an overhaul is needed.

The Super Heavy Starship will be 100% reusable and reuses could hundreds of times.

Compare the cost of rockets to Boeing or Airbus jets. A Boeing Dreamliner that flies back and forth around the country twice everyday has over 700 reuses every year. Most of the largest passenger planes have prices in the $100 million to $330 million price range. Passenger jet planes have costs that are similar to large rockets.