You can check ebay (or similar site operating in your country to reduce shipping cost). Razer being relatively mainstream, sells a lot of keyboards, making it very easy to buy second-hand new one (unwanted gift ect). Often for example 2/3 price of new BW, and then it is really good deal.
Keyboard is not that bad, lot of bad feedback comes from biased people who hate razer for their mice (which is justified). Another thing is, if company sells a lot of keyboards, there is higher chance you will find some negative feedback, about faulty units, because statistically it just happens (unlike that small group of people who orders high-end from japan).
BW is really solid board for the price, extremely solid and heavy case, even compared to some other high-end boards. Personally I had no issues with mine (keys, stabilizers, overall build quality). Got it for about 45€ shipped in europe (new, ebay), for any other mech keyboard I would have to pay about twice as much.
Can't compare it to DAS, but for example to ducky, razer feels more solid.