The costs will continue to escalate further. They have not designed a new ICBM in like 40 years.
That is why Russia did not invest more in its conventional forces. They designed several new strategic missiles (Bulava, Yars, Avangard, Sarmat).
Tell me you didn’t read the report, without telling me you didn’t read the reports.
Like so many you jumped to the car sale price and forgot the garage, the gas, the mechanic, spare parts, car wash, oil and tires.
Yes it’s true the US hasn’t introduced a new ICBM since the PeaceKeeper. However in the late 1980s early 1990s there was the Midgetman missile system or SICBM which was supposed to be TEL launched.
Peacekeeper was also supposed to be TEL launched off the back of a Train but they plugged them into existing Silos as an interm solution because no one wants to be sitting behind an ICBM in traffic.
Which brings us to the real culprit in the cost overruns. The Silos and infrastructure. A few years back the U.S. government had to admit that the Nuclear launch system still used 8 inch floppy disks.
I have seen 8 inch Floppy discs four times in my life time. The first was in a box in Elementary School. The second at a swap meet in a dead mall. The third in a high school closet. The Fourth was in a museum exhibit. Those disks were industry standard when I was Born in 1982. By the time I entered the first grade 5 inch disks were the standard.
I used 5 inch discs in Apple 2 computers in elementary school. By the 90s those were replaced with the 3 1/4th inch hard ones. That went out by the early teens.
Because of SALT I the USAF can’t build new silos so they have to basically flip them. These are big concrete silos so they have to cut into the old structures rip out 1970s vintage equipment and wiring and plumbing and run whole new electrical, plumbing and computers. They have to build a new communications line because the old one is obsolete. New ground stations for satcoms. Hell I am pretty sure this could even go to the Nuclear football.
Because the Coldwar “ended” the nuclear triad was allowed to decline as a priority. It wasn’t until the Russians started Saber rattling about Bulava, Yars, Avangard, Sarmat that Washington realized it was long long overdue for modernization. Those Russian missiles are TEL based. So you replace the launcher with a new truck at the same time as the missiles. So it’s easier to do at the launcher missiles side. Though much of the hardware in between hasn’t seemed to really have changed.