from what I understand, kids are mostly worth it for the long term
from baby to whatever age they aren't just crying, eating and pooping, it seems miserable. Then there is a cool period where you can you get away with playing Mario Kart and watching Disney films, playing catch and all that shit. Teenage years would be a nightmare. When they become slightly better in the 20s, they'll hopefully be independent and you don't deal with them until the holidays and whatnot (by this time you've probably aged at four times the normal rate). You're now depressed and have nothing to do because for a huge chunk of your adult life you were just providing for another person. Finally when you're really old, the kid finally pays off. Your best days will be having their kids over and playing Kinect Kart and watching Dreamworks films. And that's maybe the best case scenario.