Light in body and very light to straw in color, american lagers are very clean and crisp and aggressively carbonated. flavor components should b e subtle and complex, with no one ingredient dominating the others. malt sweetness is light to mild. corn, rice, or other grain or sugar adjuncts are often used. hop bitterness, flavor and aroma are negligible to very light. light fruity esters are acceptable. chill haze and diacetyl 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.