There are many shared hosts that offer free hosting, and dedicated servers are often advertised at surprisingly low monthly costs. One thing remains constant with all web hosting companies: you get what you pay for, and offers that seem to good to be true usually are. Web hosting costs have come down a lot in recent years, but usually lower cost means lower value.
In a network operations center, even air isn’t free. Dedicated server power supplies get hot and need to be cooled. Air conditioning is a major expense for data centers, and that expense should be part of what makes up your monthly web hosting cost. Don’t limit your search when searching for a host. Cheap hosting companies are cheap for a reason, and usually that means cheap service.
In most cases it is better to pay a bit more for value, and choose a web host that has a 100% network uptime guarantee, premium bandwidth, and always available support services that respond to your questions in a timely manner.