Everyone does not need to be wired gigabit network, the 100 megabit is already 4 to 5 times faster than an ADSL connection very good, but if we have to exchange large files (video editing for example) between computers, gigabit is a considerable comfort, as the copy on the network is at the same speed between two internal hard disks. Remember to buy ethernet cables Cat 6, otherwise it will not work properly (unshielded dishes are subtle and work very well even 15 meters).