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This might be what I use to replace my hodgepodge Apple router based network. The price is MOOT since a 3TB time capsule is $500 by itself and can't reach the edges of my medium sized home.

One on each floor and maybe a fourth one for the main office which NEVER got a decent signal.
 
This is for people with large houses. I have friends who can't get a wi fi signal in parts of their house, so they have multiple wifi networks. A system like this would allow them to run a single network. A single network would also make it easier to set up home automation.

In Germany modern houses are built in a way that you need a WiFi access point in each room if you want any kind of speed. So surely these new multi AP products are very useful.
 
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