What about the density of the virtualized resources? KVM or even OpenVZ (or similar) virtualization has a larger amount of overhead in most instances, especial

What about the density of the virtualized resources? KVM or even OpenVZ (or similar) virtualization has a larger amount of overhead in most instances, especially when all that you need is to display a few webpages with very simple interactivity. At the same time, having dedicated (regardless of whether overcomitted or not) resources will probably mean them being used somewhat inefficiently due to idling a lot of time, whereas shared ones could lead to higher density. What about the need to administer these VPSes? Furthermore, administering OSes and updates, as well as packages is definitely not in everyone's skillset. Being given an environment that centers just around what you need - running apps, does seem like the more reasonable choice for the more casual deployments, mom & pop shops etc. (though offerings like Squarespace could eat shared hosting's lunch in those cases nowadays). So you're suggesting that the above are not big enough concerns nowadays and it's still easier to just go the route of VPSes for vendors?