realskiers

Hmmm.?

Lighter skis are much less strain on the knees when riding the chairlift.
Lighter skis are easier on the shoulders when carrying them.?
Lighter skis are easier on the arms when lifting them into the Gondola racks.?
Lighter skis are easier to roll through the airport?
Lighter skis may contribute to not going over the 40 pound limit for ski/boot bag combined weight.

Lighter skis may be easier for lighter skiers to bend (if lighter implies softer, but carbon fiber skis may not be soft)?
Less inertia or momentum (not sure which is the right engineering term).? A lighter ski should/could feel more lively and responsive, but that is also part of design and construction materials so hard to isolate.

"Inertia = harder to turn" only if you are spinning the skis like a bicycle wheel.? I don't believe inertia is much of an issue when tipping and engaging the edges to turn.