Web Presence Cost

Having a web presence for anything is very important nowadays. The web can be a useful platform for users that know how to exploit it professionally. While the cost varies from one country to another one, it also varies from one continent to another one. Right! 

As hosting companies are receiving more traffic loads from their servers, they might raise their prices just a little bit to compensate with the load increase. 

Another factor that might cause hosting companies to raise their prices stands for the increase of server load as users are uploading more digital contents (text, graphic, audio, and video, etc.) to their servers on a daily basis.

What else can force web hosting companies to raise their prices? Or, should they keep their prices the same? What is your opinion?