The sad thing is those aren't the most expensive heads on the market...
I haven't had any critters complain about being shot through the lungs with "cheap" broadheads, like Ribteks (one of my favorites). I'll be taking Ribteks with me to CO, along with Ace Standards and a few Wensel Woodsmans.
As a side note, I don't doubt that the work and material that goes into some of these heads makes them worth the cost, but personally I don't see the need. Kinda' like rabbit hunting with a .300 Weatherby Mag to me.
Chad