We don't care.
If you can use an iPad as your only computer... Good for you... You're the typical consumer that Apple is after with these $400-$1,000 devices.
But honestly, the pro-market is alive and well, and for a lot of us that create, develop, and write that content you're probably browsing and watching, MacBooks are important to us. We cannot live in a small box, some can't even live in two screens and have to have three. iPads can really hurt a good workflow, even if you're just writing a paper. We need that whole desk/work space, no gesture shortcuts or touch based panels are ever going to make the process more efficient than using a keyboard and mouse.
We already have the best mobile setup for us, and that's a laptop. And cost isn't an issue when you're doing something that is actually making you money, so again, we don't care.
And that's not just directed at just you, that's to every person who brings this whole iPad as a laptop replacement issue.
I use my iPad Mini as an accessory. I didn't have to invest in a Wacom tablet because I use SketchBook Ink, I don't have to invest into audio equipment and the really expensive tools because I have software instruments and a great mobile DAW, and the TI-Nspire app is a much better alternative to its $100+ separate hardware version.
However, you cannot dumb down everything for the sake of saving money and being even more flexible. You have to stick to standards for some things, and it goes without saying, you have to spend money to make money.