Biggest problem you are all neglecting, you need ALOT of resources to run many bots.
I can run 3 bots on a core 2 duo machine with lots of lag. You also need about 512-1000mb of RAM for each account.
VPS are even worse. Companies probably load 10 of those on one machine. You may be able to run one bot (I could barely run one on 512 and 1g VPSs).
2 bots per computer you are talking about a TON of money.
I work for a bank full time. In my case, money isn't an issue.

