Sure, however if you play a different game you can get good wage on $UNCOOL_LANG (is that Perl now or what?)

Do you want to win bingo (chance) or get steady-pay?

Prevalent is just what you're paying attention too - there are 359 other degrees to enjoy.

Juggling chainsaws is more impressive than hammers. But it’s all just juggling

The question you have to ask yourself is: Are you juggling for the sake of juggling or to make a good show for the crowd?

If your goal is the outcome, maybe don’t go into juggling bags of poo even though it’s more challenging than chainsaws because they keep changing shape.

I think people want the ability to modify software they use (that's the whole point of open source). It's easier to modify software in a language you know than one you don't. That's why these things exist.

Going back to the hammer example, imagine that you've spent your whole life using screws. You are probably going to buy furniture assembled with screws instead of with nails, because you know how easy it is to twist the screw out and put your modification in instead. A clear path exists in your mind, whereas with nail-based furniture, who knows?