Composites still leave a lot to be desired. This is why Musk abandoned composites
https://www.reddit.com/r/spacex/comments/5ul1du/remains_of_the_its_composite_tank_in_anacortes_wa/
More on the issue:
https://www.nasaspaceflight.com/2006/01/x-33venturestar-what-really-happened/
....ultimately leading to be the end of the program – the failure of the composite LH2 (liquid hydrogen) tank during testing.
However, this was no surprise to those working on the program, with new information now showing that engineers and designers had protested at the very moment they were informed of a management decision to build a composite LH2 tank.
The full up Venture Star design first had internal cargo--then a hump--and finally an exterior cargo pod very like Polyus--plus it had wings fitted at the tips of the lifting body design proper.
SLS level funds for EELV--ot smaller--payloads
The Rockwell X-33 design, on the other hand--the general design--exists as the new DARPA spaceplane. More conventional.
ADVENT had some interesting methane designs. New materials advances really need to come before we get an Orion III
In terms of your original post, we got good rockets in the form of the Saturns. Yes, Musk's Starship vehicles will probably be cheaper. That has been the trend. But the very fact that the Saturns employed as many people as it did was in its favor--in that it built up pro-space voters--and for every dollar on Apollo--about 7-10 bucks on return.
The Saturn was, I think--a totom beast. Each expended segment wasn't a waste, but a ritual sacrifice.... I've seen messy stage separations, but the Saturns had a certain dignity. Saturn looks steeple like--yet looks more advanced, somehow--than Starship.
Apollo was very like the recent eclipse that held America together while we were bursting at the seams ourselves. It touched many lives as a system of systems. Everyone had a part. That was a feature, not a bug.
In some respects, Apollo was able to out-Soviet the Soviets, who were torn apart by competing chief designers.
Starship hopes to democritize space further--putting space in the hands of the average worker. Both Old Space and New Space have their parts to play. To mangle a quote....soon
you will believe that a water tower can fly. At least the Palomino....