Nothing feels better in my hand than a well fitted 1911. Rack the slide of one and listen to it glide open and closed. 1911's are made of steel. Plastic has its place, but i dont think it could ever replace metal.
I agree. For a gun that you want to last though several generations, I want all steel, as in the 1911. The existence of WWI 1911's are proof positive that they will last for generations because they already have. Plastics however, have not been around long enough to offer any proof that in seventy or so years, the plastic receiver has not crumbled due to contaminates, sunlight, or age. There is no way of accurately predicting what seventy or so years will do to plastics except seventy or so years.
On the negative side, I have seen an advertisement for a plastic receiver 1911.