Key selling points include no cost for software licenses and performance capable of running a decent web site on a 386. In his experience, Dave has not found big differences in the direct operating and personal costs for Linux vs. NT solutions. About the same staffing levels are required for a business web site independent of the operating system technology. Linux's remote administration capabilities do make a big difference for travel costs. With SSH and secure connections, a complete re-install can be accomplished without traveling to a customer's site.
Interactive Internet has customers as far away as Africa.
Those roles are determined by the business each web site represents. A gravel company needs about the same staff regardless of the operating system selected for their web site. However, Linux can make those roles easier to accomplish. For example, the command line and scripting capabilities in a Linux environment make automation easier. With a Linux-based site, they can quickly script the process using ftp.