Reusable rockets promise much easier testing because you should usually get them back, and you can debug as you go rather than having to get everything perfect the first time.

You don't have to get it right the first time.

Developing expendable rockets is always going to be painful and expensive. Throwing the whole rocket away on each attempt not only costs a lot, it also hampers figuring out just what went wrong because you don't get the rocket back for inspection.

When someone shows you who they are, believe them the first time.

You have to win and especially, as I have, you have to win a trophy for the first time.

The first time you went to eBay, you probably didn't do a transaction.