I think an aggravating factor in the software world (that's maybe not as prevalent in other fields), is that developers tend to want to use the latest and newest technologies, even if said technology is not really appropriate for the task. It looks good on your resume to say that you used the same technology Facebook uses - the ol' "resume driven development".
You also usually need to actually try out a new technology to know if it’s going to help you. Less “must use the latest tech” and more “let’s see if this latest tech is helpful”. Of course, both happen.
