See british origin american-style imperial porter imperial porters are very dark brown to black in color. no roast barley or strong burnt/astringent black malt character should be perceived. medium malt, caramel and cocoa-like sweetness should be in harmony with medium-low to medium hop bitterness. this is a full bodied beer. ale-like fruity esters should be evident but not overpowering and compliment malt derived sweetness and hop character. hop flavor and aroma may vary from being low to medium-high. diacetyl (butterscotch) levels should be absent.
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.