It's not a surprise that 3D televisions are moving slowly. There isn’t much content available, and what little there is tends to be exclusive to a particular piece of hardware. For whatever reason though, manufacturers expected a much larger adoption rate.
Things move slowly when you're dealing with big companies and major deals. We first caught wind of the deal between Panasonic and Sanyo back in December of 2009 and things have been moving slowly but surely.
One of the biggest problems with selling higher end gear out of a brick and mortar store is that folks on the internet can do it cheaper. Not better, of course, since customers can't demo a system or get that one-on-one experience, but cheaper.
This year is Denon's hundredth anniversary – an impressive feat for any company, and a very noteworthy milestone. Denon, of course, is celebrating in the way that you might expect. They're releasing a new product line.