Not to give you a sales pitch, but IMO (and not even b/c I work here), the SWS is a fantastic deal. You really can't find any match in the price range (or even a little pricier), and by getting 3 for only $300, you have all that versatility as well. You can hook one up to your soundcard, one to a sub-out on a recevier, and another up to whatever you please! For that reason, I would snag up this deal asap.
If you just want a high quality sub for one application and can spend around $600, then by all means, shop around!!
And for anyone not sure they'll be happy with the SWS, keep in mind we do have a 30-day money back guarantee. We don't think you'll be disappointed, though.