2 million Chromebooks were shipped in 2013 & that's makes it a success?

I've been reading that chromebooks are so successful because it shipped 2 million last year. And I'm also hearing that surface tablets shipped almost 2 million tablets last year and it's labeled a failure. I don't know about y'all but I'm starting to see a trend of people buying more tablets then laptops and those tablets are mostly iPads. People aren't buying laptops like they used to and sales of windows laptops and these chromebooks are proving as such. Most computers companies are losing money every year and these chromebooks aren't really helping and to be honest they seem like a race to the bottom. Maybe I'm not understanding this but if Microsoft surface shipped only 2 million tablets and is labeled a failure then maybe chromebooks should be labeled a failure as well. What do y'all think?