I am a little
I am a bit surprised by this sentiment. However, Where to Ski disparaged Megeve for not moving forward on its Cote 2000 lift upgrade in its France only book. I concur. The Surface Lifts were lengthy and backed up by no traffic and too many slow quads. Rochebrune is modern, and its interconnect.
It appears other low-lying Geneva-centric ski resorts are making upgrades (Grand Massif/Flaine, PdS, etc).
St. Gervais has put some money into its lift system, but Megeve less so.
All lifts/cable cars at the ski resort Megève/Saint-Gervais, Total capacity, New ski lifts, Planned ski lifts, Aerial tramway/reversible ropeway (2), Circulating ropeway/gondola lift (7), Chairlift (19), T-bar lift/platter/button lift (27), Rope tow/baby lift (5), People mover (2), Sunkid Moving...
www.skiresort.info
However, even La Clusaz seems to lack some investment on upper mountain lifts. Base lifts are all modern high-speed, but things get retro quickly above the base areas. Overall I did not mind. There is a detachable double that is a complete relic though! 1980!
https://www.skiresort.info/ski-resort/la-clusaz-manigod/ski-lifts/l89776/
The Austrians have taken the polar opposite approach to its low-lying ski resorts. While they do not have Chamonix next door, there are sizable glacier ski resorts.