Elf is the figure for army building, I am seriously considering to have a couple of them. Price on ebay is USD9.99 each (exclude postage).
Now that these figures are available in the market, I'm able to have a clearer view of them.
The 3 most expensive figures will be the fisherman (just 1 in a box of 60), elf and gorilla.
Earlier Posts on Lego Minifigures Series:
Lego Mini Figures Series 3 Code
Lego Mini Figures Series 4 Pictures