150 years ago, everyone generated their own energy.  100 years ago, most larger users still generated their own energy.  Over time, almost everyone migrated &quot;to the grid&quot; because the centralized power companies did it better, cheaper and more reliability.<p>I suspect the same will happen with computing.  At this point most of the smaller players (startups) are using AWS or another cloud provider.  Some of the more bleeding edge larger companies are doing it too.  Eventually even the largest companies will move &quot;to the cloud&quot;, leaving only the very largest companies (who incidentally still generate their own energy even today) running their own servers.