In my opinion, there is a huge lack of quality classical music on Youtube.
The 'Youtube Symphony Orchestra' helped generate a bit of interest, bu still not enough I don't think.
I recently started posting a few videos of pieces I have recorded (not just classical, but jazz/blues etc as well,) aiming to get my friends more interested in classical music.
But (as I expected) my videos haven't received a lot of views!
So, if you're interested, please take a look at my channel on Youtube! Any comments or criticisms are welcomed!