The american style of these classic german beers is distinguished by a comparatively greater degree of hop character. in general the style is characterized by a medium body and broad range of color from golden to reddish brown. sweet maltiness should dominate over clean hop bitterness. the bitterness should not be aggressive or harsh. malt character should be light-toasted rather than strongly caramel (though a low level of light caramel character is acceptable). bread or biscuit-like malt character is acceptable in aroma and flavor. hop aroma and flavor should be notable but at low to medium levels. fruity esters should not be perceived. diacetyl and chill haze should not be perceived.
The number one reason is craft beer tastes better than the "beer water" that is mass produced and mass marketed by the big beer companies. Craft beer tastes better because craft brewers spend their time focusing the quality of their beer rather than focusing on their marketing campaigns and stock prices.
Oh yeah! Craft beers can pack a punch. Most craft beers range from 5-10% ABV, but some can reach 20%, 30%, and even 40% ABV.