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Video games with a pixel art-style are overdone.
Today's technology makes the art-style redundant.
Only having pixel graphics is to completely ignore some amazing video game innovations; we shouldn't be going backwards.
There is no obligation to use new technology; retro-style gaming will always have a following.
Art-style, being a creative choice, cannot really become redundant. It can become less popular in the mainstream market, but as with all art forms, there are always a small group that appreciate and enjoy a less popular style.