YouTube is a massive chunk.
And forget your iMac. It's all about how it performs on your mobile/tablet device. Where it counts.
It works beautifully on the iPad, for example.
All Apple-centric sites are fan sites. There's no getting around that.
If I was to move to a tablet for work, my productivity would literally go down the *******. Do you have any idea how bad it would be to work on a tablet when you constantly have to shift between FileMaker, Mail, web surfing (to wich Safari is the absolute worst, remember?), working with documents, reports, scanning, printing and all that goes with it?
Tablets are **** for actual work. Get your head out of your ass.