The value proposition of purchasing extra credits is really bad, especially as a pro sub. $25 for only 1000 credits which is less credits than a standard sub (1200 for $10), and $3 for 100 credits which wont even be enough to make a third of a song, or anything at all if it entails experimentation. Its almost like you dont want people to buy additional credits. Personally i rather wait for the month to tick over rather than buying any of these packs, which is a shame cause i would really like to continue using the site even though i spent all my pro sub sub credits.