In reply to Matt.

For me, and many others I've spoken to, while JetPack offers various benefits, it means connecting more data to WP.com. That's the beauty of WP.org and self-hosted: we're not forced into connecting data points that we don't have to. Instead, we can use the most optimized plug-ins and settings that are right for our needs, versus being restricted to what JetPack decides are optimal.