With MarketPress 2.5 came store statistics and everybody's a bit happier. :slight_smile:
The last project I build was using Drupal Commerce and I miss the stats it provides... They aren't difficult to achieve, they're just just beautiful!
The Affiliate plugin has some great-looking statistics compared to MarketPress which is a bit odd, considering that the MarketPress plugin is a lot more famous!
Google charts ( https://developers.google.com/chart/ ) has a really easy implementation and it would be a simple matter to add a new dashboard widget with full, beautiful sales reports.
I've created a feature request here, if anyone thinks this is useful I urge you to vote for it!