Interesting to contrast Google Apps Marketplace: It charges 20% of "the total amount your customer ends up paying you for your application and related add-ons",

Interesting to contrast Google Apps Marketplace: It charges 20% of "the total amount your customer ends up paying you for your application and related add-ons", specifically including recurring revenue but also excluding sales of items like books (unsure how they would classify e-books for this purpose). http://developer.googleapps.com/marketplace/fees http://developer.googleapps.com/marketplace/fees 20% off the top line for all revenue from a customer they acquire for you. Seems like a bargain for a one-time sale; seems costly in the out years when it's you, not Google, putting all the work into retaining the customer. Not complaining. Just contributing a data point from a similar effort in a slightly different space.