Definitely interested, but I probably won't get to it anytime soon, so I'll wait until they have the gold version for cheap. Otherwise I'll probably end up paying for this now, and then buying it again when the full version is on sale in a few months, since they tend to do package pricing, and not expansion only discounts. That's one thing I wish Steam would do, give a partial credit (even if it's small) if you already own part of the package deal.