The Wii was successful at selling consoles but I bet the attach rate was far higher for 360 systems.
By about 1 game, yes. Wii's worldwide attach rate according to their latest financial report is 8.5. Within spitting distance of the PS3.
I disagree it's not a matter of casual vs hardcore, it's really about what is a major jump forward.
I've my idea about a major jump in "graphics" ( as a whole) I can't see next gen deliver.
Next gen can deliver high end pC IQ but that's it.
There is nothing fancy about over tessellated mesh, Epic and other have to use wire frame for people to really notice. Neither particles running on GPUs are news. More is different from new.
If people are a bit like me, which I expect as we are never that different, what they would want is more akin to voxel based world ala Atomontage. Only voxels will allow really deep interaction with the game world environment (from chemical to mechanic to whatever).
That's won't happen anytime soon.
Then there is animations and no easy solution in sight. One just have to look at robotic to see how tough it is to do fine movement and it requires feedback. That's a bit to much for an AI puppet trying to grab a stone on the ground.
My belief is that the technological curve is not at a point where major improvement can be offered.
More is the new new. No paradigm shift in sight only people with something to sell...
On the back of a revolutionary interface design ...
Neither of which is the case anymore. Sony has already introduced Move and MS already introduced Kinect (and nintendo decided to go the non-portable Vita route). Any "wow factor" which would offset sub-par hardware is long gone.
The sales of these new boxes will be directly related to what is seen as "impossible" on current gen hardware to inspire sales.
This will require a hefty increase in tech.
Despite what some may see as a take it or leave it inevitable offering from both Sony and MS, if the offering isn't compelling enough, we may well see a mass exodus with people choosing the latter vs the former.
Other options at this point are numerous and likely to expand even further if weakness in the sector is detected by potential platform producers, so don't be too quick to blow off the demands of the consumer for what they are looking for in nextgen tech...
My belief matches with some of what people from *within* the companies on this very board have said in the past: next gen is going to be more about user interface, software, and services more than anything else.