| Having spent years in materials research, I have to say, "There's nothing quite so wonderful as steel".
The primary arguments against those materials you name are cost and maturity of manufacturing technology. Other objections would be durability, conductivity and "feel".
Steel is pretty hard to screw up, it's ductile and tough. The technology to manufacture things from it are ubiquitous and relatively cheap.
Other materials:
Titanium: costly (although less so in recent years), hard to fabricate, very light (feel and balance issues).
Fibreglass: Non-conductive, weak, not stiff enough, not likely to break gracefully (low ductility)
Carbon fiber: Costly to make and fabricate, light, not as conductive as steel, no ductility.
Paolo
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"He is a man of splendid abilities but utterly corrupt. He shines and stinks like rotten mackerel by moonlight." "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats."
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