Yep without data in forums like these, 0 discussion is had. At 10ppp, we only got to 13 pages here. Typical NPD threads made it to 100 pages with actual data. Sometimes even weekly Media Create threads will be beating these NPD threads.
NPD isn't the only one slacking though, VGchartz used to have decent data and pretty much all other US trackers are pretty bad nowadays. Its interesting we get instant data on Box Office and CD sales and many other forms of physical sales, but for video games it is very hard.