For me its just the little extra thinking you have to do to be sucessful in a fantasy game. You really have to become familiar with your units and strenghts and weaknesses. The more familiar you are with your army/units the more you care about how it plays and how it looks on the table. I feel that im more "vested" in my fantasy armys than my 40k armys.
At our old gaming club we used to ask "Chess or Checkers" when we were looking to play. Chess being fantasy because you could lose the game during your setup you had to make sure your units could come to grips with the ememy effectivly.
In 40k i find that its a bit more forgiving during your setup and your units can move easier to cover any flaws in your setup.
Last edited by rayrod64; 02-27-14 at 12:33 PM.