Hey there
If after considering all the pros and potential risks of investing in mining you would still like to purchase the s7 or s9, our website still has a couple available at competitive pricing with free shipping. We also have lower cost investment options for mining. Feel free to check us out or get in touch with our team for more information.
Dragon Mining
http://www.dragonmining.net/https://www.facebook.com/dragonminingworldwideGood luck!