Maybe you should. The creator of Chocolat is in a position where he obviously has to charge to help him survive. Just because another piece of software that's equally or more powerful than Chocolat is free doesn't mean that Chocolat should be too.

I've been using Chocolat since the very first public beta and I loved it even when it was filled to the brim with bugs. I've also used SublimeText2 in that time. I can say that for me Chocolat is worth the $50. No, I can't afford it right now so I keep using an unlicensed SublimeText but just because I can't afford it doesn't mean it isn't worth it.