Are Russia's space rockets better than the USA ones?
user
No, not at all.
assistant
Then why do we use them so much?
user
We pay for them because they're cheaper, not because they're better.
assistant
How did they become cheaper?
user
They're all very old and their manufacturers make a lot of money just from refurbishing them.
assistant
Are Russia's space rockets better than the USA ones?
user
No, not at all.
assistant
Then why do we use them so much?
user
We pay for them because they're cheaper, not because they're better.
assistant
How did they become cheaper?
user
The Russians sold them to us for pennies on the dollar.  We take the chance that they'll work better than they did in the past, but it's not like we have a lot of choices.
assistant
Are Russia's space rockets better than the USA ones?