This is what I bought. I needed a narrow boot, not the Nordica N1 or N2. He showed me the 90 and the 120, but the 120 was $200 more and honestly I'm not sure if I'm a good enough skier to notice the difference. I spent about 1.5 hours there and the guy 'stuck them in the heater' and came back and had me wear them for a bit while they molded to my foot. He also put some soles in that he gave me at a big discount. Plus I got the wax tune up at the package discount. Nothing special on those discounts, but it was a combo deal.
I did have to get my bindings remounted :( Boot size went from 28.5 to 26.5 so naturally it had to be done. All in I was at $360.
I have no reference point to know the difference between the 90s and the 120s. But considering the boots I have been using for over a decade were just flat out wrong, the 90s will be an enormous upgrade. I figure I'll give these a go for a decade or so or at least until I start making lots more money, then possibly try some 120s to see if I can notice the difference.
Great forum guys - don't know what I'd do without y'all! Thanks!