It never ceases to amaze me at how cheap some gamers are. I understand being conservative with your money but please! If you are that concerned find a game group who owns the game and see if you can sit in a session or two, or watch a demo game. If the game doesn't warrant the price to you, find a different game. It's that simple.
From my perspective it is one of the least expensive RPG's to come along in a while. Let's compare to my current D&D group:
Five players and one DM: (all prices at Amazon's 33% off) 6 Players Handbooks at $24 each ($144), 1 DM's Guide at $24, Monster Manual 1 and 2 at $26 each ($52), a minimum of 2 sets of dice per person, that's 12 sets averaging $8 each ($96). Now that alone is $316 and we havn't even touched on "extras" like minis, any of the other rule books, adventures, or a subscription to DDI. Already we're looking at $52 a person to play at a minimum level.
In comparison let's say you buy 2 sets of WFRP from Amazon at $62 per set ($124). You now have enough for 6 players (not the five in my other example) and several duplicates of things, including the rule books. Cost per person, $17 each. Unless you are the kindda cheap-ass that buys one book and photocopies it for your players, or even worse gets a pirated copy off the internet, there is no way you can't appreciate how inexpensive this game really is. And besides, we're talking about a hobby here, by it's very definition it is a luxury, not a necessity. Roleplaying is the least expensive hobby I partake in.