dont think its the computers fault.., thats a bit like saying a brush limits the art of painting.., maybe it does have limitations but at the end of the day its how and who is using it.., there are seamless composites out there that are not shiny.., as for games?? maybe the 'shiny' look is what is considered 'game style'??? and one wouldn't think it a far cry from any motion graphics??
theres always.., 'desaturated' isnt there??
wouldn't know myself, only seen two or three in my life
maybe it maps for maps sake.., RGB, radiosity, reflection, occlusion, .., ect.., ect.., ect.., done well they work well to.
take it easy and life will be easy