Alcohol is an acquired taste - until you get used to it, it's all going to taste like crap unless you're having a fruity mixed drink. Once you do get used to it, though, a good beer or some good wine can be really enjoyable. A good cold beer on a Summer night, or a good wine with some strong cheese is one of life's simple pleasures for me.
That being said, yes, you can take it too far, and I definitely have before (and will in the future). Being inebriated is a nice feeling, but I would disagree with the attitude that it's a must to have a good time. If you're with good company, though, a pleasant buzz can make things just that much better. Heck, it can make things better if you're with bad company, too. But it is by no means necessary, and those who have a reliance on it should probably work on it for their sakes.