I got one of the PSW110s at Best Buy on a whim for the $125 and I am honestly not impressed. I didn't really think I would be. It is, however, better than nothing if that is a real spending hard limit for you. I may end up taking it back and getting something else. I may only keep it because it does work well enough in the apartment and shouldn't get me in trouble with the neighbors. Then when we move I can buy the A2-300 I want or an SVS 12, and give this one to my father, who has no sub atm and he would love it.
The only reason I tried it is because I like Polk speakers, and thought it would be cool to match, even if for only 6 months. That and the Fiancée says the ones I want are too big for the apartment.