Value to Cost: 7/10 (This really should have been an expansion to the original.)
Also considering there's been many deals on it lately.. I mean Steam had it on sale like 2 weeks after it came out or something like that for $37 and the 4-pack for even cheaper than it was originally, and it was on for $28 I think during one of the Christmas sale days and it's been $37 for the entire christmas sale period as well. I'd say you could have easily gotten the game for expansion pack price which makes it worth the money.
When I list the Value to Cost ratio, this is based on it's MSRP, not it's sale prices, now with it's sale prices, it did reach 11/10 and at one point 12/10, but still, more people are going to come across this article when it's not sale season (they're too busy pricing out cheap games on steam mind you,) and long after it's been written, which, I do believe games have a somewhat linear drop-off in value as time goes on, some games, more logarithmic, depends on the title and the support post-sale. This makes my numbers feel a bit more solid. I think I'm going to have to provide a little more detail into how I construct my reviews so people understand a bit better where I pull these numbers from, that's for a later time though.