Bose cube speaker systems meet the needs of some people that want small and unobtrusive speakers but as most people here will say they are junk when you consider the price. If aesthetics trump performance and cost is no object, Bose is as good a choice as any.
I can't tell you the number of times I walked through houses with Bose Acoustimass systems when I was looking for a house where the homeowners had the left and right speakers to the right of the center speaker and the surrounds on the fireplace on the same plane as the front speakers.
Those are the kinds of people that are attracted to Bose cube systems. The kind that think as long as you have 5 speakers, you can place them anywhere. If they are placed properly, they do an OK job, but for the money you can of course do much better.
EBay is the place to sell such systems and you can probably recoup near the full price paid for them.