Just thought I'd try to put that chart into perspective for you...
Apple *alone* has sold over 100 million iPads since it's introduction 2.5 years ago.
For Blu-Ray players to *match* those numbers over the 5+ years they've been available, Blu-Ray households would have to *average* better than 2 players per household. Does that sound like a 'booming' sales market? Considering that a very significant fraction of the players counted there are PS3s, of which a significant portion never touch a Blu-Ray movie disc, it gets worse from there.
If not for the Blu-Ray vs. HD-DVD 'war', which dragged early consumer adoption through the floor, Blu-Ray would probably have firmly established itself *before* streaming actually became *feasible* for better-than-DVD-quality movies. Unfortunately, it didn't, and it probably never will at this stage. From the perspective of the normal user, streaming video and/or digital downloads are better than DVD, and on the small screens available for much of the non-home watching (car players, portables, etc.) it's qualitatively about the same as Blu-Ray would have been.
I'm saying this as someone with a reasonably sizable Blu-Ray collection (about 35-40 titles last time I counted). I actually still have more VHS tapes than Blu-Ray discs though. There's absolutely nothing wrong with Blu-Ray from a technical perspective. It just landed on the market a bit too late, and got off to a slow start because the industry had to play petty games. (For the record, I think we'd *still* be dealing with the Blu-Ray vs. HD-DVD 'war' if Sony hadn't put a Blu-Ray drive in every PS3, and had it capable of playing movies right out of the box. And HD-DVD probably would have won, had MicroSoft done likewise with the XBox 360.)