I was assuming that many people were buying tablets to supplement their PC, not to replace it. My sister has a Macbook, an iPad mini, and an iPhone, and she depends on all three. I have a Dell laptop. I don't see myself buying a tablet any time soon, but I am definitely planning to get a smartphone sometime this year. I don't expect the smartphone to replace my laptop. For one thing, and I suspect this is the case for other people, I might use my laptop to work from home. As the article pointed out, it's preferable to use a PC for things that you can't do with a tablet or smartphone.