[pletsch]

The Queen is a significantly better piece. The King needs to be protected and is borderline unusable until end game, where the Queen is the most powerful piece from start to finish. This is so evident that in higher levels of play, people just resign when they lose their Queen.

[zeteo]

If by higher you mean 1000 ELO then sure. In actual tournament play it's very rare for someone to blunder a queen and resign. Queen exchanges happen in most games and queen sacrifices are fairly common. There are no king exchanges or sacrifices.

[l33t2328]

In higher levels of play people rarely just “lose” their queen.