Before the mass-produced bottle was perfected, most wines were served in decanters. Some decanters were made dark brown and green to hide the things floating in the wine, or its lack of proper color. Nowadays, all wines look pretty good, so do we still need decanters? The answer is a solid Yes, for several reasons.
Why decant? One reason to decant wine is that it looks good in crystal or clear cut glass. Most bottles are still colored to protect the wines from light while they age – or away being drunk – and decanting lets you look at what you paid for.