Hmmm wonder whats up Canon's sleeves. Apparently the only distinction between the 50D seems to be its' build quality over the 500D (which has more functions). Thats a lot to ask $500 more for a typical consumer.
IMO, the HD vid function on both the 5DII and now the 500D is useless for the typical consumer. Why? Because it doesn't autofocus like a normal camcorder would. The upside is to be able to record HD video on a DSLR sensor which would produce quality on par with professional camcorders. Downside is how realistically usable is the function when it doesn't autofocus.
For a company that charges $130 for a tripod collar and $50 for a hood on a $600 70-200 F4L and almost double for the equivalent with IS, I'd argue that they have been asking for too much for a long time now

It's downright monopolistic pricing, but they have that leverage, because people will still buy it.

To be fair, the IS isn't as easy as slapping on some IS device to the F4L, but if they could put IS on the EF-S 18-55 upgrade relatively cheap, I don't see why they don't retire the F4L and bring down the price of the IS version.
I bet Canon makes close to 40 - 60% margin on that lens.
I didn't know it doesn't AF. That sucks! I initially thought liveview on my 40D would come in handy, but since it doesn't AF, I haven't used it at all. Good idea, but not practical. Do you know if the Nikon equivalents AF on their HD video?
btw, does anyone have the sigma 50mm 1.4?
Wow, I tried it out on my friend's Nikon setup and that thing is a bokeh beast!
I think I'll be getting that in the future when I get better a shooting portraits.