Ip Per Game Change ideas

League is a great game, but one that takes up so much time. The amount of ip after the win of the day seems to be rather low, compared to the cost of the champions. There are so many good champions that are 6400 ip. And many players end up playing 200-500 games to get that, example, jinx. This has a tendency to drive many new players away, and tends to be a drag. I feel that they should add some changes to the game, like ip per kill or how much you helped out in the game overall. And to be honest, it tends to make me feel like you have to play endless grinding to get that ONE champion. Please tell me how you fell/ feed back