I'm not exactly a fan of paying for security software but this is a great deal. Malware Bytes is the only paid security software I keep on my own personal computers. This is $12 for a lifetime licence. All of my PCs already have this on them but I bought another license just to support this company.
I think it may have a bit to do with restoring confidence after what happened a couple of weeks ago, it caused a lot of pain mainly for real-time users. Some businesses had hundreds of crippled machines.