This isn't too surprising. Hydrogen power would be great from an environmental and economic perspective if they could bring the cost of production down. Judging from the article, that'll be some time before the average consumer could consider driving one.
Report: 2015 Toyota Hydrogen Car to Cost Between $50,000 and $100,000
We're not exactly sure where this picture of the 2014 Mercedes-Benz S-Class came from--other than a French...
The tech is so expensive as its relatively new to production cars to feature, bit pointless if a few people have them but the rest of people who can't afford them are going to be canceling out their contributions. Until the manufacturing of the tech comes down in price it won't be easily accessible to the masses!