For about a year I've been in development with Baseball United, a website that intends to be the social network for baseball. The site has been built on the Drupal 7 platform. Several custom modules and hundreds of programming hours later, the site is live and active with baseball teams and stats.
Thanks to the new Drupal Commerce module there is a store full of baseball-related products, thus far featuring Akadema. This could not have been done with Ubercart, the old dog of Drupal 6 commerce sites.