If you two think I am a troll, you are mistaken. I have been a Macintosh user since 1994 and a member of this forum for 2 years (and a lurker for much longer.) I was simply trying to get info to dispute this graphic and you got defensive and took this the wrong way. Sorry, you failed.
As has already been mentioned it's what the chart doesn't show that is critical. Price, weight, battery life and ease of use are all factors that are in the iPad's favour. To me the weight is an especially critical point, a tablet is going to be held in the hands for extended periods of time. At 1.5 pounds the iPad is going to be OK although I'd like it to be even lighter. Anything twice the weight or more is going to have problems.