Nakano - Hi. I guess it depends on useage. We began with stainless scales. maintenance free, tough.
We have used aluminum on the Worker, G-10 on the Standard & Harpy. I liked 'em. Public didn't.
I'll start a thread with your Q.
On this particular model, it is more collector because of the 20 year run of the actual model that began the change in the market. Modern Aluminum is hi-tech, light, and can be colored. The Lum Chinese is quite striking in the green Almite. don't know the color yet (Those with an eye for "pretty" would be better qualified than me to select color.
sal