Steel, a more traditional product, does have a number of advantages. It is extremely durable, easy to modify dimensionally with little tooling expense and when made from stainless steel, it is corrosion resistant. Additionally, changing the finish of steel is easy as it can be simply powder coated, not requiring that the color be molded into the piece. The biggest disadvantages are that steel is very heavy and that the piece pricing is quite high. It is the logical choice for an environment where the equipment will take significant physical abuse.