How many factions are there?

Seriously, why are so many people obsessed with elves? It's getting out of hand. Two more types should be the absolute maximum. Let's not stop there and add:
- Sea elves
- Night elves
- High elves
- Drow
- Half-drow
- Elf-birds
- Green elves (half-wood elves, half-humans)
- Blood elves
- Santa Claus elves
- Arctic elves
- Lava elves
- Sun elves
- Moon elves
- Eldar from Warhammer 40000 and their variations
So, let's not go overboard.