Basically, it’s totally two different concepts between armor series and fabric series. In the worse condition, the fabric costume can be made by professional tailor, while most armor costume has to be home-made. Of course, the stage influence can be highly different.
In the first place, 70-100 US dollars is the basic budget (including materials, manufacturing fee, color, weapon and other ornaments) to make an armor costume. Generally speaking, the basic materials are the same. It is normal to use Fiber Reinforced Plastics Grille (FRP grille) or Polyvinylchlorid (PVC). FRP is sold in bucket and is cheap as a factorial material. These are the advantages and disadvantages of these two:
Advantages: cheap, easily shaped and manufactured (compared to FRP)
Disadvantages: PVC-made costume is stiff and seriously affects the smoothness in moving, and it cannot be made exquisitely and subtly. And the difficult in coloring is also a vital defect.