The results and analysis for Blu-ray (and DVD) sales for the week ending 24th September 2011 is in. With Star Wars, Thor, and even X-Men: First Class, all still selling well on Blu-ray, market share remained high, the second highest in the history of the HD format. The new releases actually didn't contribute much to the market share result (although they obviously did contribute significantly to the revenue result), as most were below the week's average market share of nearly 30%. Bridesmaids was the week's top selling Blu-ray release.
Modern Family season 2 was released on Blu-ray during this week, with season 1 released exactly a year ago - this allows for a comparison between market shares. Season 2 had a market share of 14%, while season 1 had 11%. Given the show's increasing popularity (roughly growing 2 million viewers per season, in the US, some 20% growth), this doesn't seem like quite enough growth, and once again, we have several new seasons of TV series that are not being released on Blu-ray, including the third seasons of Castle and The Mentalist. Pricing may be an issue, but for Modern Family, there's only a $6 difference between the DVD and Blu-ray versions right now, so perhaps it also suggest other factors are in play, such as the different ways people consume TV series (iTunes, Netflix, Hulu ...).
You can read the rest of the stats and analysis here.