In the related article I noticed that Sigma SD-9 and SD-10 are not mentioned as competition of the Canon. In my opinion the established companies on any market are trying to sell their name with the products, i.e. charge the customer for it. The name though does not take pictures (for example), neither it makes them better. The runner-up in a market, in my opinion, is the brand to choose. In the car industry, the korean cars offer most for the money (the japanese already have created their image and reputation). In the photo camera market, the Sigma SDs are pretty innovative in terms of technology.
Cheers!
Borislav
Cheers!
Borislav