Did lotr really sell 6.5K? I find that hard to believe. I would have thought somewhere between 4-5K in total. (even that is really impressive) I know that it had a couple of extra runs, but still, 6.5K?
The Hobbit could very well end up selling 2,5-3000. If that happens, it must be categorized as big success in today's market(probably on par with ac/dc sales) and that is the important thing. Already ca 1500 pre-orders bodes well.
Comparing it to a game from 2003 with multiple re-runs is unrealistic and pointless.