Hard work != value. Clever code != value. Writing something hackers think is cool != value.
Sometimes I think the hardest part of startups is re-aligning our value system from what we've learned in school and society into something that's actually useful for startups.
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.
I can't seem to keep in mind that code is a means to an end!
unless your customers would be hackers (i am telling this to myself, to reassure myself)