I agree that some of the lifts in and around Nendaz are old and that there could be better access, but to say that there has been no improvement in the last 10 years is simply incorrect:

A new 8-seater gondola was installed in 2013 to run from Siviez to the top of Plan du Fou. It replaces the "Victorian" chair lift and button referred to by Scriberus on Mar 22 2013.

For anyone skiing back from the L'Eteygeon itinerary, in 2013, there is a new high speed 4-man chair from Les Masses. Etherolla was installed just a couple of years ago to get back from Veysonnaz to Siviez. Combatselline / Novelli (from Siviez) is a high speed quad and looks to be only a few years old.

The Gentianes cable cars were replaced within the last 4 years, as were the Mt. Fort cable car. For those wishing to go further afield on their all-inclusive ski pass, there is a new 8-seater gondola from Le Chable to Bruson.

So, yes, the Nendaz lifts are a bit old, but they access some amazing terrain with many new or upgraded lifts. If you ski outside of the childrens school holidays, there is virtually no one here! This place is amazing!