I imagine that in most cases you are right but the scenario that I have read about is the case where one or more sites using the same ip address as you, if you are on a shared ip address, get blacklisted by google then that will also impact your site. Are you saying that this is no longer true? My view is that it costs so little, apart from a hopefully temporary drop in serps when switching :Cry:, to use a dedicated ip address so better safe than sorry.