I have no incentive to switch from Grooveshark to Spotify since I'm grandfathered in to Grooveshark's $3.00 a month plan that has no ads and lets me stream to m

I have no incentive to switch from Grooveshark to Spotify since I'm grandfathered in to Grooveshark's $3.00 a month plan that has no ads and lets me stream to my phone.