- Environment: Gluing glass and aluminum most probably forbid recycling both of them, that's just a waste. - Cost of repairing: While with previous models, any of us could replace some part of his laptops easily (to repair as well as to upgrade), that won't be possible anymore. That means that it will cost tons of money to customers (Apple Care becomes mandatory), and that the ecological impact will be even greater, see 1.
I am currently thinking about changing my current MBP June 2009, and as the author of the article states, I have to make a choice, and that choice will probably participate to drawing the future of laptops.