You have a cash site, to support it you make a network of say 100 or 200 sites that will all link to the cash site for various keywords. Are you saying it's okay to put these 200 sites on the same IP address with the same nameservers and they will still have the same affect as though those domains were on separate IP addresses and nameservers?
First, if you're spending money for 200 IPs to simply get some keyword links back to your cash site, you're doing it wrong. Second, if you *did* do that, it would depend on the sites and their content. Chances are these sites don't have any "link juice" anyway, so it's not going to matter one way or the other. Google doesn't care if 200 sites on the same IP link to you or not. Google cares about the voting power of the site linking to you. Too many people think they can make some shitty wordpress blog network of 200 sites, hide them behind different IPs, spin a few ripped articles, and then suddenly have a super magic linking network that will send you to the top of the search results for any keyword. It's retarded.
Or are you saying if you have 15 different cash sites that are unrelated to one another, all on the same IP address, it won't have an affect on their ranking probability?
Obviously this is true. Otherwise the concept of shared hosting would be pretty much dead.