"Brett Buck" wrote ...
Both will almost certainly survive to provide redundant access for
military payloads. Commercial viability was/is essentially moot - they
are required national resources.

There's been talk about how 'required' that required access is.

It puts Boeing in an interesting position though. Suppose they say
"We're not interested in doing Delta IV anymore, it doesn't pay." to the
US Gov. is the government going to have to come back with Big Money(TM)
to tempt them?