VPS web hosting gives you the option of choosing the level of support that you want from your provider. Unlike shared hosting where the server is fully managed and dedicated servers which are almost completely un-managed. Un-managed VPS solutions involve the user being responsible for all performance and software issues but the hosting provider handles all the network and hardware support. The semi-managed VPS solution involves the user handling all of the custom software while the hosting provider handles all of the standard software, network and hardware. Fully managed, which is the only way shared hosting comes, involves the VPS client only handling the installation of custom software while the provider is responsible for all issues relating to the basic software that they provide as well as the hardware and the network.
A VPS can provide a comfortable middle ground because you have the ability to make the choice of flexible support as well as additional resources for those who want to have more control than a shared hosting plan but without the potentially high cost of a dedicated server.
