It strikes me that this would inherently and obviously be a choice you could make for yourself?
If you look at the numbers, yea, a console is generally not a winner. But lots of other stuff goes into that decision. Evidently you want to play with your friends. The solution is either to convert them, or join them. Seeing as a console is easier entry, joining them probably makes more sense.
Do you need the PC for anything else? School?
Seriously though - this really is not a great question for a public forum, most of the intangibles are something left to your personal judgement, and the tangibles are objective so it doesn't make sense to debate those.