1. "RE: This seems more like a 'prosumer' device" In response to Reply # 0
You're right. 5K for the 'entry' level iMac is a lot of coin.
I couldn't see hard core gamers spending 5K, at the least, for this device.
The only market I could see for this is IT professionals who need high powered workstations for data-intensive processing or develop cutting-edge software. I could see video editors or CG designers getting a lot out of the hardware as well.
It was crazy tho to see the crowd get hyped for the iMac and then let out some polite applause at the price.