Hmm, that chart is mighty interesting!
In general (and I've said it before in nauseating detail), Canon seems to be taking a 'damn the torpedoes, full price ahead' attitude with insane pricing for products that are delayed to increase desire. I think they are taking the Apple approach. Let anticipation build, keep quite and let the press and the bloggers work everyone into a fever pitch, then pull the trigger on the release but release slowly to encourage more pre-orders in the future and immediate snapping up of scarce stock.
Canon seems to be treating their product releases like having their hand on a revenue steam throttle. If they open it up full bore, people will get saturated with product and not buy as quickly but it they release products slow and let the pressure build up, they produce more
Just a thought...