Purchasing software is very expensive. To reduce software management costs and administer copyright obligations, many LAN managers install generally used software, like word processors, spreadsheets, and Windows only on their servers. This also increases traffic between the server and the desktop. The movement of these graphics also increases the traffic on the network. Switches are easier to install.
Switches are easier to maintain than routers.
Switches let network managers preserve their investment in Ethernet cables, software, and network interface cards. Each computer or small group of computers can have a dedicated 10 Mbps segment connected to a high-capacity Ethernet switch instead of having to share 10 Mbps using the current Ethernet standard. Switches cost less to operate and administer than competing technologies. Switches allows an appropriate increase in bandwidth to be added to the network when necessary. Ethernet switches can provide port densities ranging from 6 to 128 Ethernet ports per switch.