It is only 2 more for her to clean. (y)
You can never have too many! Unless you have a less accommodating other half...
You could but having dedicated speakers for music would then then increase my speaker count to 9 in my room. edit: 10 including the sub
Or you could just get these as a nice pair of stereo speakers for music, which they'd be great for.
I am after a pair of Tannoy Revolution XT6F speakers in dark walnut. Richer Sounds seem to be discontinuing them so hopefully others will follow and some deals will be popping up.