Sure enough, here's yet another example that Buffett knews what the heck he was doing when he acquired five huge, solidly profitable companies to the benefit of Berkshire Hathaway Inc. (NYSE:BRK.A) shareholders with little dilution. Of course, that's not to mention Buffett has also been actively working to reverse at least some of that dilution, most notably through the company's recent substantial share buybacks. Even still, let's put things in perspective by digging a little deeper to see just how effective these acquisitions have been.