At this point, they're almost like a neglected bonus for me. Between the Wii, Wii U, 3DS, and various compilations, I'm not sure what they can add to the service that hasn't been released several times over. Many of my favorite games (Clash At Demonhead, the MacAdventure trilogy, Maniac Mansion, Nightshade, etc.) will never be released for it.
Either way, I'm always interested to see what they come up with. I'm definitely excited for the next Direct!