I have seen this repeatedly over the years. It's frustrated me personally many times.

However, just to offer a counterpoint, one thing I have seen time and time again from highly-motivated technical people is that they place the new and exciting technologies above the actual business needs. There is an inherent risk in using cutting-edge tools and technologies, and if the business is working well with the current stuff, why take a risk you don't have to?

Of course, the other end of the spectrum is only using completely obsolescent tools, and that can be a problem in and of itself as well, because it also brings risks with it.

I have, unfortunately, been on teams where these people got their way and it led to very expensive project failures because when reality came to bite, they couldn't deliver. The new stuff couldn't meet the requirements. Using existing technologies which were known quantities would have avoided that risk entirely, even if it wouldn't have been as fulfilling for them personally. The company isn't run for individuals' personal amusement and tech fetishes, and sadly when that takes priority over all else, it can lead to failure on colossal scale.

I still try out new stuff, but I don't propose we use it for serious business-related activities until it's been fully proven out.