I dunno, I don;t get bothered by TOS connie's around by the same excuse I would use for NX series ships around - blame starfleet engineering.
Engineering school in starfleet is probably where all the old ships get refitted and then deployed as the equivalent of "class projects". OF course, this also means if you're commanding one, you might want to be a little careful and double check everything was properly assembled.....
But, I may be too willing to see a humorous yet theoretically valid way to have really old ships in service with the new stuff. Its the starfleet equivalent of a bunch of high school kids restoring a car, then modernizing it as much as possible.
Its the starfleet equivalent of a bunch of high school kids restoring a car, then modernizing it as much as possible.
That's...actually not a terrible analogy. I've seen a 67 Ford Mustang completely gutted and had the engine, transmission, fuel system, exhaust, suspension etc. replaced with all new stuff from a 2010 Mustang. The skin was the same but the innards were all brand new. Well crap I'm gonna go name my new NX the USS Mustang haha