And without context that seems like a bad deal. But Dropbox gave you more in referrals, for acting as a promoter, not out of kindness. Mega is unproven at this point, except for wanting lots of attention. Skydrive gives a bit more than Google does, so it's down to personal choice.
Which of those providers is giving you a great web-based office suite that gets updated weekly at least with some new feature(s) and doesn't count storage for using their own formats and has amazing search? That's right, Drive.
Space isn't everything in comparing and I was going to get a Chromebook anyway. The bonus is nice, but unlike some I don't feel the need to complain about a free service because it gives me less raw storage than some others. Feelings of entitlement just make people sound whiney to me. I have no tolerance for that.