Try flipping it around. If I presented an product to you and were able to convince you that it was of significantly better quality (more durable, fewer bad surprises etc) than other products in the same category, would you be most surprised to learn that it was also more expensive or that it was less expensive than these other products?

While it might be true that a higher price doesn't necessarily entail higher quality, it seems to me that higher quality almost always entails a higher price.