Sure, you could buy a boring coffee table that doesn't do anything other than hold your magazines and coasters. That's an option. Or, if you're feeling a bit more adventurous, you could get yourself SparkFun's LED coffee table, which took two years to build. What's so great about it? Well, how about the ability to play a four-way game of cooperative Pong on it? You can't do that on a normal coffee table, can you?
Unfortunately for you, this is a one of a kind piece, one that was a true labor of love. Because of that, you can't just swing by Best Buy to pick one up. If you've got a couple years on your hands and some expertise with electronics, however, maybe you can just make one for yourself. Let us know how that works out.