Depends on the fixture manufacturer. The LED does have replaceable components (driver, elements, etc.) and they use less than a fraction of the energy that MV uses. Plus their color rendition is equivalent to a /DX merc.
The sad thing is that, given the LED has a "maintenance-free" service life, it shouldn't have to have replaceable components. But of course the manufacturers stretch the truth with every aspect of LEDs.
I actually don't mind the color of LED streetlights though.
Actually I think there's a lot of vintage lighting in CA, at least in SLO area...slimlines still in commercial use, etc.