[GoToRO]

Relax. I've seen code written with/for the newest technologies and it's mostly crap. Just like you don't have time to learn it, most people don't. But everybody is happy, including the client, because they have this new tool written in the newest technology so it must be good. People evaluate software just like they evaluate cars: they take a good look at the paint job and declare that this car is good, while in reality the seller only took care of the paint job, the engine is dead.

[Bahamut]

People often think new tech is a cure for their woes, such as poor code quality - often it is just papering over the real problems & barriers.

[SomeStupidPoint]

I've also seen tech switches used to mask rewrites, because they could sell management on the idea that $NEW_THING would solve our woes when what we really needed was just to spend half a year refactoring the legacy system (regardless of language), but half a year to redo work didn't fly.

[GoToRO]

Now that you mentioned it, I think this is the most common case.