I was getting a few too many people buying the wrong version of the plugin so I opted to setup an alternate domain at nowplayingplugin.com with a splash page that gives them the choice of editions. Hopefully, this clears things up.
Nothing too fancy but I tried to make the page concise with the logo, a sample, and links to all the editions. The Twitter feed on the right side is pretty cool. Shows all the live #nowplaying tweets from my plugins being used by people all over the world.
Click through and click the Like button for me! Or tell me how I should improve it in the comments.