One of the things that I look for when I purchase a product is not only the quality of the product, but the level of customer service/support. I having recently made a change to a bpw I went with a DSS. Not only have I not heard a bad remark about them, but Tobin's level of customer service has been outstanding (even prior to purchasing one). His goal is not to sell a product just to sell it, but to ensure that you are buying exactly what you need. I have sent him numerous emails and not one has gone unanswered. He is also a very active member here on SB, so he is easy to get in touch with. An added bonus of the DSS, you pay a fraction of the cost for a product that is just as good as the one you are contemplating.
If you are sold on Halcyon, the only way you are probably gong to get it cheaper is to buy it used. They make great products so you won't be wasting your money per se, but from what I have seen, even the price of a used one is just as expensive as a new DSS.