It sounds madness!!!!!!
But there is method in the madness. As soon as someone buys a Canon DSLR they will (usually) also be buying a Canon lens. The Canon lens will only fit a Canon SLR, so in a few years time they will buy the 40D or the 5D (or an equivalent). It gets people into the system. Also, the 450D is a very advanced camera - entry level should arguably be simpler.
