Why didn't you like their sub?
My thinking is the surrounds will cost me another $300. A top quality receiver is $1,000-$1,500, and a matching center channel is $300. This whole B&W system according to the seller was over $3,500 and it will cost me $1,100. But I did read that this is B&W's entry level while the Paradigm studio speakers that I have are not entry level so I would hope they sound better.