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.
Shared hosting is cheap and allows you to install any gallery platform you wish if a hosting plan meets its requirements. But be careful and study your hosting provider’s Acceptable Use Policy thoroughly. The truth is, that even if they claim unlimited storage with their plans, they don’t want you to use much of it. On the contrary, they secretly hope that you will use less and they can host many other clients on the same server. For that reason, hosting providers usually put limitations on their policies (e.g. “no more than 10 GB for images,” etc.). So don’t be convinced that you have unlimited storage without first checking your shared hosting provider's policies or you will find your account suspended someday.

VPS, on the other hand, is an isolated playground specifically for you. You will be able to install and use any professional software you need. It also provides more opportunities for caching the content. Imagine that you implement caching tools to provide your users with better experience and reduce the loading time of your website. Caching means that the part of requests to your website will be processed using RAM instead of a hard drive. Eventually, RAM will be filled with these requests. Since VPS deals offer more RAM then shared packages, you will get better performance using caching.

This process (with minor modification) also works to migrate existing Arch installations between various environments and has been confirmed to work in migrating from OpenVZ to Xen and from Xen to OpenVZ. For an install to Xen, other hardware-virtualized platforms, or even to physical hardware, extra steps (basically running mkinitcpio and installing a boot loader) are needed.

Shared hosting is not meant for websites that use large amounts of RAM. As your website grows and you add more and more content, you will start to see a decrease in your website’s load times. As soon as this happens, it’s an indication that you are maxing out your limits. Upgrading to a VPS will enable you to scale your website without having to worry about slow load times.
What is mining exactly? It is solving the same mathematical problem over and over again. In the early days of BitCoin, it was profitable to use CPU capabilities for mining. But the truth is CPU is not meant for performing repetitive tasks all day long. CPU mining is not fast enough, compared to GPU mining or more sophisticated solutions like Field Programmable Gate Array (FPGA) and Application Specific Integrated Circuit (ASIC). Taking into account a hosting fee that you will need to pay for a VPS, your profit will be next to nothing. That is why we do not recommend using a VPS for mining.
I have used shared hosting for over 7 years before I finally decided to upgrade to a VPS server. When I was using shared hosting, I had so many problems with malware, slow loading time, brute force attacks and so many other issues. Now, my life is so much easier with VPS. What amazes me the most is the support team; they simply exceed my expectations and they are ALWAYS available to answer my questions.