There is some merit to the arguments of the article but it also misses some key points that require an understanding of how the semiconductor and electronics industries operate internally before any assessment of the pricing of Blue-Ray technology can be made.
First is the fact that unlike 1998 when DVD made its big debut and supplanted the old magnetic technology in VHS with the optical DVD (which is per unit cheaper to produce than VHS offering a compelling impetus to switching over) today, Blue-Ray has to be built on production lines that are already doling out the more profitable (per unit of production, since authorized supply is lower) DVD players and discs. In the two years or so that Blue-Ray has been in the zeitgeist (thanks in large part to the medias idea of a "second generation format war") it has had to be produced next to a nearly comparable product in DVD. In order for manufacturers to ramp up production they would have to outlay cost for the Blue-Ray differential components while cutting back on a raging profit center. It should be no surprise that the manufacturers would be reticent to doing this until such time that a blue tuned laser head costs the same as a red tuned one and the additional DSP horse power required to perform the relevant encodings/decodings of disk data on the fly are also cost competitive with the now 10 year old DSP's and lasers produced in volume (and at low cost) for DVD's.
The details of ramping up production of Blue-Ray over DVD go even further than switching parts at the electronic manufacturers. Most of the DVD player makers put them together using third party acquired parts. The true controllers of cost and even player production rates are the semiconductor and optical laser suppliers. If they are making a killing on red lasers and DVD (mpeg 2 encoding) DSP's they have no real reason to open parallel design lines for Blue-Ray lasers and DSP's until the return on profit (in bulk purchases from the player manufacturers) substantiates the switch over. Retooling semi-conductor lines are serious business and explain why every so often the big fish like SMC and others have massive fabrication build costs that go into the buildings. Designing the DSP's in DVD and Blue-Ray players require an initial investment in clean rooms, incredibly high tolerances in manufaturing and ensuring adequate yield in the way of working chips (only a percentage of chips produce actually work!) that the sem-con makers simply will not leave to the fickle chance that Sony, Toshiba and other providers will provide the new chips in sufficient bulk to cover their outlay. In a climate where the difference in visual quality is marginal and only appeals to a subset of individuals with HD sets (which are usually produced on relatively low yield screen technologies like plasma or LCD) the margins to be had are absolutely razor thin, so choosing to ramp Blue-Ray slowing rather than quickly , waiting for the consumer market to be able to switch over at pace is the much smarter action than taking a bet on a fast adoption and building production of Blue-Ray devices that may not sell adequately to recoup costs...especially under the competitive conditions of multiple manufacturers selling the same product but wanting to distinguish them in some way.
The availability of online resources for researching the technologies, the manufacturers and the trends in adoption and pricing make it critically important that both the manufacturers of the players and the makers of the chips get production volumes precisely right or they will be tempting billions in losses.
So the assumption that the providers are milking the format for margin is a bit of a naive one, the dual level linking of manufacturing processes sensitive to pricing and already small per product margins make it critical to hit the right production volumes and it is better to go too slow, make money but leave some on the table than to go to fast and lose billions without making anything.
Finally, just a word on the statement that mp3 is not as high quality as CD. That is correct if you are talking about sampling rates below 44khz and bit rates under about 120 bps but most software mp3 encoders allow the CD quality 44Khz or higher and bit rates nearing 500 bps, enabling better quality than what is produced by most CD players. The software nature of these encoders ensures that arbitrarily high quality files can be produced say from original signals sources, mixers, live instruments at high quality and then be encoded to super high quality mp3 as masters to be used to distribute to CD or SACD. The wikipedia article below states that SACD is roughly equivalent to a 20 bit /192Khz CD. An mp3 with this quality can be made by some software tools.
http://jthz.com/mp3/ (scroll to section "Fighting the "MP3 does not deliver professional quality audio" myth.")