Muck, I already tried to tell you that WITP is probably not the right game for you, since you admitted that you're more of a casual strategy gamer.
That being said, if you're willing to invest the time to print out the manual and study it, and learn the fine intricasies of the game....then I guarantee you that you'll think $70 was too little money for the game.
Everyone I knew who tried their first game, Uncommon Valor, got hooked, and hooked hard. It is an addicting game, and I suspect WITP will be more of the same.
I suspect that the reason Matrix Games decided on no demo and no money back guarantee, is because they are making a game for a niche market who already knows they will enjoy the product.
UV/WitP are not games....they are a way of life.