Most people buying a saw this size want it for the power, weight being secondary. I could buy a 661 or a Husky 395 which are both better in big wood, and are both approx. $500-$600 cheaper.
The power to weight ratio is impressive, but many other saws of several manufacturers have impressive ratios as well. The only reason people will pay so much is to have the first fuel injected chainsaw. Personally, I'd rather buy a 661 and a 241 for similar monies. This 500 wont be as good in big wood as the 661, and obviously wont limb like the 241, yet it costs as much as both put together.