I liked that one.
I personally feel that Apple will own the Tablet market because of how they control the component supplies and they used what they learned from past successes (iPod) and tweaked from past failures (Clone wars). It is a miracle that Flash didn't kill the iPad but somehow people accepted it.
People who are currently betting against the iPad overlook what you've described. First of all, very few competitors have been able to match the iPad on price. And even there too, I doubt they're netting a 30% margin. Apple could easily cut the price of the iPad in order to make it harder for competitors. Apple won't do it in the beginning, but it's a bullet that Apple has.
Also, like you said, Apple controls the supply chain. Apple has singlehandedly created component shortages in the past. In February, there was a report that Apple had booked up 60% of the world's supply of touchscreens. In spite of this, the iPad 2 suffered from a massive backlog. Apple has enough cash to secure the best possible deals on components and block out competitors in the process. This has the added effect of padding Apple's margins, in case they decide to do a price cut. There are rumors that Apple's aggressive supply chain management tactics led to delays in the launch of the PlayBook and Galaxy Tab.
Another thing that people are not realizing is that the iPad is already two versions in. Most competitors aren't even on their first tablet yet. That's a major headstart. A lot of companies are deploying the iPad. This process is fairly lengthy. IT departments aren't going to jump ship overnight.
There are three main jokers in the deck. The first is Flash. I'm not yet ready to push Flash in to the "non-issue" pile. While 25 million people say otherwise, we're not quite there yet. The jury is still out on Flash. If that remains the case for a little bit longer, then I'll call it a "non-issue."
The other joker is Windows 8. As far as I'm concerned, it's nothing more than vaporware. I'm not going to place bets on vaporware, simple as that. But, Windows 8 is still an unknown factor.
Lastly, the "wars" are far from over. Competitors are regrouping. For the past year-and-a-half, competitors have thrown practically their entire marketing muscle behind the availability of Flash. Clearly, Flash as THE main selling point will not be enough to convince people to jump ship. RIM learned that the hard way.
Bottom line, it's not over by any means but Apple has a huge lead.