So says this. From now on you can expect American sales data on subscription-based MMOs from NPD. Should give the internet something to write about four times a year.
"These new additions to NPD's portfolio of products provide manufacturers, retailers, licensors, publishers, developers, and financial services companies with the ability to track the size, growth and demographics of the US market for subscription-based games and software," said Martin Zagorsek, NPD VP. "These products are an important step towards NPD's ultimate goal of providing a truly complete view of the North American PC game and video game markets, including all of the different ways consumers pay for and play video games, PC games, and related products."
He managed to get the phrase "ultimate goal" into that quote. We reckon he won his bet.