As a cerified Expansion addict, I've always been curious about how successful they have been relative to each other in terms of popularity. While I understand you probably can't release actual sales figures (though I'd be super fun if you did), it'd be very interesting to see it historically and/or in an ongoing ranking on the site or blog or community to see trends.
For example, it would be fun when something like Satin Looks was released to see it climbing up the list week after week. Or how a new video from Barry or Beau or Jef or Knock or DDS spikes the numbers. Or whether a new post by someone about an older expansion can move the trend. Etc.
Maybe in a ranked list like the Billboard Top 100? As a former-ish marketing/advertising professional myself, I know from experience you could have all kinds of fun with this in terms of community engagement and outreach. And frankly it's just plain fun too, adding a little gamification element to the whole thing.
And BTW before anyone gets their knickers in a knot again because you think that producing expansions is somehow slowing down product fixes and updates, that is just ridiculous. They are a really valuable source of ongoing revenue for companies like Akai and Native Instruments and Novation and Modal that is what allows them to continue developing grand products with multi-year development timelines and it does that in a way that can be outsourced to industry producers like Snipe and MSX without using any of the development team internally. And for users like me the excitement of new expansions helps maintain enthusiasm for a product that might naturally wane in the face of new gear inevitably coming to market. The alternative is that companies like Behringer that have to rely on inexpensive niche $100 synth clones (which are still cool, I'm not saying otherwise) to fund the development of more revolutionary stuff like my cherished Maschine+.