2 things to consider. First, to make a good comparison, you really need to listen to the new speakers in your room with your electronics. (Yes, I know that's not always convenient, but it is true.) Second, B&W's cost far exceeds the sound quality they deliver. Some of that has to do with how much they put into the appearance of the speaker. Its substantial. And I'm not saying its right or wrong, that's just how it is. For some customers, appearance is very important, and there's nothing wrong with B&W for making products that customers want.
If you're more concerned with sound quality, and are willing to consider other brands, I know you can get something a lot better than what you have for far less than 9k.
If you're more concerned with sound quality, and are willing to consider other brands, I know you can get something a lot better than what you have for far less than 9k.