#2
Pursue the dream.
I do not know the cost across the 49th, but an online class - 2 credits is $35 here.
There are also many schools above the 49th that could teach you as much.
#3
Dude,**** Berklee.I live in Boston and a lot of my friends go there and say that its so overpriced. A few of them are transferring to the Atlanta Institute of Music due to the obscene costs of Boston plus AIM's curriculum is strictly music based so you don't have to take pointless shit like math,science and english. My advice to you is to look at AIT vs Berklee