I have a Golden Key membership, and I'm guessing you're talking about the Golden Key International Honour Society (the OU spelling is intentional). But it's a waste of resources. They claim to be a prestigious society of some sort, not unlike the Stonecutters from a Simpsons episode, but actually, it's all very blah. They offer a credit card with their logo on it and discounts on car rentals, but nothing I actually benefit from.
When you're approaching college graduation, being a member of an organization with a stuffy-sounding title (with British spelling thrown in for good measure) may have a wow factor, but once you hit the harsh reality of the working world, no one really cares. Get the membership just for the heck of it if you can afford it, but if not, you're not missing out.