Using a factor or forth, Arc or whatever as an example (note: factor is a bad example because it has a large set of practical libraries). Lets say you are considering using a programming language. Does having a large set of practical libraries matter? If your language is well designed, then it would be easy to create a ‘string’ library or a ‘date’ library. Maybe even a web framework?
I mention this, because when a language emerges, it seems that someone brings up ‘practical libraries’.
It definitely matters – nine times out of ten, I’m going to pick a language with good, well-supported libraries that help accomplish what I want to do.
This isn’t to say I wouldn’t enjoy writing my own libraries (quite the contrary), but for a production project where quick, accurate results are important, that wouldn’t be a practical option by any stretch of the imagination.