Pixel art holds zero nostalgia for me. Give me something that looks good, and plays great, and I will buy it. Pixelated graphics do NOT look good.
Amen, brother! Pixel art was great when that's all that was possible. Compared to what's possible now it's just plain ugly. Oh, sure, there are a very few modern games that really benefit from the retro style. Good for them. Most, though, merely do it because good art is hard. Really good pixel art is hard, too, but barely passable pixel art is a lot easier than barely passable HD art. Nothing says "not enough budget to hire an artist, just have the programmer do it" like pixel art.
Most "glorious 8-bit retro style" games would look a lot better with HD artwork. It doesn't have to be photo-realistic; stylized cartoony artwork is great in most cases. Let's just admit that the choice to use pixel art is almost always a budgetary decision, not one driven by the higher artistic vision.
(Ghost Control, I'm looking at you! Put your game in the XCom: Enemy Unknown engine and it would rock!)