There are tons of on-demand streaming apps popping up in the market. I'm looking into getting a subscription service. Thumbplay and MOG are $10/month while Grooveshark is just $3/month. I could get three years of Grooveshark paying the price of one year with the other two. I'm thinking about using Grooveshark until we hear some more about Google Music rather than diving all in with Thumbplay or MOG. I already use the Grooveshark website and have playlists built up. What are you guys preference?