VPS has a dedicated IP address, which you do not have to share with other users. This is important, as in shared hosting many domains are under one IP address and if one website fails, the whole IP address is added to the blacklist. Also, in case of shared hosting, your website's load can be affected by another user on the same server. It means that if your "neighbor" website is loading or it is inaccessible for various reasons, your website loading time can be increased too.
The fun part starts when you try to secure your server. I configured CSF (ConfigServer Security & Firewall) and cPHulk Brute Force Protection to make sure the server is secure. As i am responsible for the security of my own server, i am always having to spend valuable time to stop any attack or hacks. I usually get notifications of hackers trying to get in but the server hardening work has made it impossible to hack. The only thing is, now, i wouldn't mind paying the extra to get a managed server so i can use the time elsewhere.
Mirror and share a deep copy of your in and outbound virtual network traffic. Take advantage of aggregation, packet collection and load balancing solutions by streaming traffic to a destination IP endpoint or an internal load balancer in the same Virtual Network, peered Virtual Network or Network Virtual Appliance that you can deploy from a growing list of Security, Network and Application performance management partners.
The force driving server virtualization is similar to that which led to the development of time-sharing and multiprogramming in the past. Although the resources are still shared, as under the time-sharing model, virtualization provides a higher level of security, dependent on the type of virtualization used, as the individual virtual servers are mostly isolated from each other and may run their own full-fledged operating system which can be independently rebooted as a virtual instance.