The fundamental physics involved in suborbital flights mean that you are likely experiencing sustained acceleration of 3+ Gs minimum. That is a lot, something near the max g force of a roller coaster but lasting for minutes. Combine that with the launch/landing zones needing to be many miles from anything, and it isn't really ready for primetime. Just for reference 1.3 Gs is the max sustained load you will feel in a regular airliner, very rarely 1.5 Gs for terrain avoidance.
For cargo, maybe medical stuff like moving organ donations around, but largely I can't imagine a ton of use cases where getting something to an antipode in 3 or 4 hours is that much more valuable than getting it there in 19 hours.
If you’re a military unit about to get wiped out by an enemy force due to running out of ammo, I imagine getting 100 tons of ammo in 1 hour vs in 19 hours would be a big difference?
The scenario where you have access to a space launch system, and an LZ at the front, and abundant supplies on the opposite side of the earth, but your logistics have failed to keep supplies in theater doesn't exist.
Forces that run out of ammo don't have access to cutting edge ICBMs is a rule that I would bet money on.
The fundamental physics involved in suborbital flights mean that you are likely experiencing sustained acceleration of 3+ Gs minimum. That is a lot, something near the max g force of a roller coaster but lasting for minutes. Combine that with the launch/landing zones needing to be many miles from anything, and it isn't really ready for primetime. Just for reference 1.3 Gs is the max sustained load you will feel in a regular airliner, very rarely 1.5 Gs for terrain avoidance.
For cargo, maybe medical stuff like moving organ donations around, but largely I can't imagine a ton of use cases where getting something to an antipode in 3 or 4 hours is that much more valuable than getting it there in 19 hours.
Then again, maybe I lack imagination.