As I've said before you think that the world revolves around you so if the iPad is not capable of doing the things that YOU need to do for work then it is a toy. The fact that it IS capable of doing the things that plenty of other people do for work never enters into your mind. It is like other people do not exist to you. I have given you example after example of things that I use the iPad for AT WORK on a daily basis and yet you dismiss it every time as if I and the people I work with do not exist.
I work in higher education. Our spreadsheets do not contain macros. We do not use Photoshop. We do not use SketchUp.
We do load textbooks onto it. I can carry around dozens of textbooks in a device with full color photos, embedded videos, etc. that weighs less than 1 actual textbook. One can walk around a lab grading programming assignments or dissections and entering the grades into an iPad. They would never try to walk around the lab carrying a MBP. People that used to carry legal pads to meetings now carry their iPad which not only has the previous meeting minutes, the new agenda, but also allows them to take notes on it. We do this EVERY DAY. It isn't some sort of fantasy as you seem to think.
Let me repeat this and try to read it slowly. The iPad MAY NOT WORK FOR YOU. That does NOT mean that it doesn't work great for others.
I own a MBP and an iPad. I use the MBP for tasks that it is great at and the iPad for tasks that it is great at. The iPad is a great device that fills a great many needs for many people. The fact that it does not fill your needs is irrelevant. I don't think I can make this any clearer. DO NOT buy one. YOU do not need one. For the love of Pete, stop thinking that you need to force the rest of the world to live in your tiny view of it.