While it can of course get annoying, hipness should not be discarded so easily.

I'd argue that the hipness of a language/tech stack is actually an important business consideration today, if only due to the short supply of good startup dev talent. Good developers have their pick of jobs right now. For instance, most of the PHP badasses I know are regularly turning down PHP work in favor of working with something newer.

After all, the smartest people like to learn more than anything else.