This is actually a pretty important post for musicians and bands seeking drummers. For starters, it prepares you for what you are going to encounter and how to spot one drummer from another. It also tells those of us putting together home studios what type of kit to buy/build regardless of who will give it the most mileage.
Traditional punk drummers will often have small kits, sometimes just a 3 or 4 piece. Some also like to have 2 snares-one with the snares disengaged.
A hard rock drummer will often have a 5 piece and moderate amount of cymbals.
Metal drummers generally have a 5-7 piece or more these days along with double bass and a generous amount of cymbals.
Industrial bands....uh yeah their drummer usually needs a power supply!