Which connection type is best for you?
Your specific needs determine the best connection - serial, modem or network.
Although trends favor networking, it has some disadvantages. Networking's
biggest disadvantage is cost. Installing a network, especially a wide-area network
(WAN), is costly and complex. Networking costs require that many companies
install networks gradually. These companies end up with dual communication needs
requiring dual solutions. Ongoing network maintenance is expensive and generally
beyond the capability of most users. Networking may mean hiring a system
administrator, contracting with one, or investing in additional training for your
current administrator.