What’s more likely — 5 years from now, your primary home computing device is a PC? Or 5 years from now, your primary home computing device is a tablet? Just two years ago, this question would have been an absolute joke. Now it’s a joke to think it will take a full five years.
Now, I’m in the 1% because I code, I write shell scripts, stuff I (for now) need a “real” computer for, but none the less: For the 99% of people the iPad covers all their bases.