A virtual private server (VPS) is a cost-effective way for a small business to gain more flexibility and efficiency than is offered with shared hosting without the expense associated with running a dedicated server. Most small businesses also don’t need all the power of a dedicated server, so VPS provides a good in-between option when you outgrow your shared hosting. Get the power and flexibility of your own server without the cost and complexity of managing outsourced hardware.
It comes down to basic reasons: If your business is growing and receiving more traffic, it is time to move to a more controlled setting like VPS.
Unmetered hosting is generally offered with no limit on the amount of data-transferred on a fixed bandwidth line. Usually, unmetered hosting is offered with 10 Mbit/s, 100 Mbit/s or 1000 Mbit/s (with some as high as 10Gbit/s). This means that the customer is theoretically able to use ~3 TB on 10 Mbit/s or up to ~300 TB on a 1000 Mbit/s line per month, although in practice the values will be significantly less. In a virtual private server, this will be shared bandwidth and a fair usage policy should be involved. Unlimited hosting is also commonly marketed but generally limited by acceptable usage policies and terms of service. Offers of unlimited disk space and bandwidth are always false due to cost, carrier capacities and technological boundaries.[3]
FastComet offers multiple configurations for VPS hosting, all of which are cloud-based, include SSD storage, and are fully managed and monitored. The VPS servers are optimized for many popular applications and frameworks, including WordPress, Joomla, Drupal, and OpenCart. All VPS plans also include 24x7 support for both your infrastructure and applications – with a 10-minute response time! If you are an experienced server administrator you can also have root access to your VPS.

Shared hosting is like you are living in a room with a lot of friends. It means you must fit in the same room and you must split the cost of several things because it is affordable and cheap. However, several individuals are sharing the same space, it means everyone needs to live within a space with restricted resources among them. You will have to use the same things (that sounds a little unhygienic).
Ubuntu is one of the most popular desktop Linux distributions which also has a web server variant as well as the Kubuntu package. Overall, Ubuntu, Debian, and Red Hat Enterprise Linux (RHEL) are commonly found in web hosting and private cloud data centers in use as web servers, with Fedora and openSUSE more popular among independent web developers and PHP/Python programmers.
As you can see, a VPS can be the perfect middle ground for many – enough flexibility and resources for those who need more access or control than on a shared server but without the cost of a dedicated server. If you need root access, you can’t get that on a shared server, but you can get it on a VPS. If your site experiences unpredictable swings memory usage, and your host provides it, then the presence of burstable memory will be attractive. And, if you’re a fan of customization, then the fact that you can customize server-level software such as PHP, MySQL, and Apache will perk your interest.  In short, choosing a VPS will allow you to have many of the same characteristics of a dedicated server but in a more affordable and manageable package.