Well if you want a Pig farm.. have it, there is no right way to play the game.
Hell, not even kil the bosses are the right way to play the game. If you want more stuff to do then you need to kill Bosses to advance in game without consol commands...

Beware, when you kill your first troll, then the troll event will come to your base... Pigs and Trolls dont mix :D