Won't hurt to market yourself more, especially if it doesn't cost much, and you are willing to spend time for each platform to make them all up-to-date, whether it will get you more views or subs, I can't say, but at least you are out there on the interwebs.
For those saying FB page suck, I don't see it the same as you do. True, it doesn't generate much views/subs, and I don't do much promoting the page (no mass invites or paid publicity or hack), but I do see the page likes go up a little now and then. What I do notice is that I get feedback via the page messages from users that are primarily on FB. Nowadays people even use FB to search for stuff, so I don't see a drawback of having a FB page.