I told you guys, do not listen to ThrillerFan, he is a troll.
He's not the sort of troll that goes around talking about his universal system that wins every time, in some ways he's even worse because sometimes he sounds like he knows what he's talking about.
No, the real troll is this shmo named Uhohspaghettio1. Go back to Ireland and do the only thing the Irish are good at. GETTING DRUNK!
All Irish men (& woman) are drunks? How racist is that?
OK, the main lines are not that as boring as Exchange Monte Carlo. The issue is that there is SO much theory to learn just to know how to respond to, something like, 1 out of the 10 games as White. The classical (I guess it's called Steinitz) alone is super-theoretical (or maybe I feel that way because I just started looking at it), but then you have the Winawer which is even more theoretical. Without studying to play it as Black (maybe as an alternative weapon), it may not be worth the investment of time. I think I'll have to study to play as Black as well.