If you want a niche example, I’ve been talking with train control engineers about consolidation of suppliers and how that has allowed them to raise prices way faster than inflation. And the nature of turnkey systems locks you in to a supplier that might get bought and then OEM support is gone.
YIMBYonese Liberation Army
On the operating costs side, the growth of monopolies in the transit industry combined with bespoke US procurement requirements is absolutely devastating agency budgets because once you’ve made the capital investment you are stuck with the ongoing costs.
