@Raccoon Very possibly very little... bot nets tend to be trojened computers... someone released a virus once and are using zombie computers... the virus spreads so costs no money to maintain.
Only way it costs money is if someone is paying to "rent" it, which is likely the case... but even then considering its illegal bandwidth with no material costs it is likely a lot cheaper than you think.
@Raccoon ahh yea, i mean, someone is likely paying ... but yea its also probably remarkably cheap despite the firepower.
@freemo
I mean more like these companies are paying someone to do this. I doubt they even realize that they are paying a couple hundred dollars for someone to just have a bot spam a bunch of websites with accounts that no one will ever look at.