Oh heck please do wait for the consumer version! I kind of thought about putting my dev kit on eBay, this is the first game that's really made me think about buying the real thing when it comes out. Everything else just makes me feel sick, the consumer version should be massively better with regard to latency and resolution.
Ex-helo pilot. I have hundred of hours in simulators so well used to them. On the other hand, I wouldn't think of buying a half completed product (OR) normally, however the enthusiasm and vivid descriptions of folks experiencing even the rough devkit makes it hard to resist.
Since no-one in my corner of the woods (well plains) has one, and there is little likelihood of having a games show locally where the kit would be demonstrated, testimonials and video are all I can base this on.