They are our partner, not competitor. We help people to buy, specially for bigger projects 500+ pieces. If you want to buy 1 piece you are also welcome.
For example, some might be sold out. In case you are looking for D3, we have the latest batch for 750 USD including shipping:
http://b-asic.io/product/antminer-d3/If you want it, we have it
Money is perfectly safe sending it to bitmain also and the prices are way cheaper, even more so when you use a coupon. Hard to compete against that.
Your prices are already higher than Bitmain's website. I doubt prices on Bitmain site will go any higher.
You are right, the prices are higher, but they include shipping with DHL. Moreover, your money is totally safe purchasing conveniently from us through PayPal.