Originally posted by PentaxPoke I sense a slight bit of Pentax bias here...
While you make some reasonable points comparing the t2i to the k20d (top LCD, weathersealing) The t2i is not "mediocrely constructed" and it certainly isn't an "inferior body." I had a k20d and we also have a new t2i and a 7D in the lab. I have used the t2i quite a bit, and find it to be a very good performer. It is also quite surprisingly very well-built and lightweight. Although you would be missing some features of the k20d, the t2i definitely is a more responsive camera. AF is definitely faster than the k20d as well as the k-7. I would also not compare the t2i to the k-x. The k-x would be a step down from the t2i. (That is not to say that the k-x is not an excellent entry-level camera. but I wouldn't compare it to the k20d or the t2i)
Originally posted by PentaxPoke I grow tired of reading insecure hyperbole such as "inferior body" and "poor construction" when comparing Pentax cameras to entry-level Nikons and Canons. They are all well built, and have advantages and limitations.
My build-quality rating scale goes from Excellent (1D series) to Poor (the rebel XS). I have handled both of those cameras quite a bit, and while the XS is constructed well enough to be useful, it's the lower end of what I'd accept.
On that subjective scale, the T2i comes in at "mediocre" but not "poor," and I'd place the K-x at about the same level of construction. And at entry level (even upper entry level), what else do you expect.
The K20D is what I would rate as "good," as you might expect from a dense, sealed semipro camera. This is not hyperbole nor is it born of insecurity. I currently use a camera that is inferior in terms of construction to the K20D (like the T2i) and I don't have any problems with it. That doesn't change the fact that the construction is inferior.
I'm brand-agnostic (user of Olympus, Canon, Pentax) and don't feel that I have much Pentax bias. Actually, the T2i is a camera I've been lusting over (7D sensor for under $1K? Sign me up!) since it appeared. I do, however, feel that overall it's on a similar level of actual camera-usability to the K-x, all things considered, and I don't think it would make sense as an upgrade from the K20D unless there's a specific need for advanced video capabilities, especially with all that nice Pentax glass the OP listed.