But who wants to have a plastic body who had a solid metal body before
If all things are equal, I still prefer metal body. I have own over a dozen metal camera body. However, If the ergonomics of the plastic body is better than the metal body, I do not have problem using a GOOD plastic body that does not squeak, assuming everything elses is equal. Personally, I think the metal body is way over priced and we are paying for our vanity. Just compare the 40D with similar Rebel. The 40D is twice the price of similar Rebel. Someone will have to try extremeely hard to convince me that the metal body alone will worth a few hundred dollar.