The ONLY thing that Spotify is seriously missing right now is Chromecast support. Why so stubborn?
I am not privy to your internal numbers, but I would have to imagine that the increase in premium memberships that might come with Chromecast compatibility has got to be more than you're making on Connect!
You're definitely not alone with the longing for Chromecast support. Please click on the link below and leave your comments/kudos over there to support the idea. Unfortunately this is the only thing to do at the moment: