Nope all over this article.
>If you want to buy a botnet, it'll cost you somewhere in the region of $700
Very vague.
>ZeuS source code: $200-$500
Nope, total bullshit. It is widely available. [1]
>SOCKS bot (to get around firewalls): $100
Nope. "Socks bot" refers to the ability to convert an infected computer into a SOCKSv5 proxy
>Unintelligent exploit bundle: $25
This refers to exploit packs, which is obfuscated software sold on these boards that contain unpatched 0day exploits. Exploit packs are worthless after a week, unless updated since all the vulnerabilities (apart from Java[2]). They're available for free.
[1]http://www.multiupload.co.uk/P8QUNF4YJN
[2]http://www.theregister.co.uk/2012/08/30/oracle_knew_about_fl...