Chapter trophies are good because they show you you have done a different, somehow important part of a game and some people want some trophies without actually going all out. I have trophies that I only got because I want the Platinum but I would have never done that "task" without trophies such as having the counter of every Mortal Kombat character at 24 hours playtime (which I didn't do the ordinary way, I just let on the PS3 in Training Mode and payed for for electricity to earn it such as 99% of the players), going 1000s of kms in Soul Callibur V, destroying everything in Dragon Ball Raging Blast and such. Dodging 200 Lightning Bolts is also such a thing but this one was obvious and I did it also without trophies as it is Final Fantasy.