Personally, I use my 2010/11 LX82 180 75% of the time in the Northeast, and will breakout 72mm waisted Volkl tigershark on icy days or rent fatter skis when there's actually more than couple inches of fresh stuff (which was virtually none this years...sadness). I love my LX82; I'm sure I haven't tried anywhere near as many skis as many folks on this forum, but to me it has a perfect balance of performance and forgiveness. It pays when I'm skiing well, but doesn't punish me so badly when i'm not. Of course lot of other skis can do the same, but the whole engagement feels very refined (hard to explain clearly, and I'm sure virtually impossible to understand from reading it....). So I love my Kastle, and I'm planning on getting an FX95 (haven't decided whether it'll be HP or not, hoping to demo it soon) as I'm hoping to get more off-piste skiing done in the coming years.
But this is just my experience, and my willingness to pay for it. Others may balk at the idea of paying that much for a pair of skis, or may be, but just didn't think they're worth that much after having tried it, etc. There's really no right or wrong in my opinion. There are lot of things like that in life....why pay over 100 bucks for a bottle of single malt, do you really need to pay over 300 bucks for a Scotty Cameron putter, do you need to pay 1000s extra for a full frame camera and lens, etc. Some people like it and able/willing to pay for it, and some people aren't. No right or wrong...just the way things are. And good thing for all of us, there are lots of options and price points.