Conical fermenters are not just for commercial breweries any more. Now homebrewers can have all the advantages of conical fermenters at very affordable prices. Some of the benefits of conical fermenters are:
Less chance for oxygen ingress.
Primary, secondary, bottle or keg all in one vessel.
Less chance of off flavors from yeast autolysis (yeast death)
Easy to harvest yeast
Easy to take hydrometer and taste samples
Easy cleaning and sanitization
Stainless Steel models will last virtually forever