Wow. I knew the labels' economic relevance was declining, but I'm amazed that one of the four key "factories" in the commercial music industry just changed hands for $1.9 billion - less than half of Dropbox's recent valuation.
That's been mentioned a few times, someone even said four big tech companies (e,g. Apple Google Facebook and Microsoft) should just buy one each and cross-licence, the customers would love that.