All this is good for us. To sell more games, developpers compete together to get the nicest graphics. To sell more cards, computers, hardware companies compete together to make more powerful cards, processors.
To enjoy it, geeks invest a lot for games and hardware and keep this innovation engine fuelled.
And us, average customers, we buy from time to time games and hardware two years later, for 1/4th the price geek paid for it, and enjoy massive improvement year after year. Whatever shiny, brilliant, realistic graphics one can see, one just have to wait two or three years to have it at home.
Geeks and their fortunate parents diserve a monument.