One thing you might want to consider (depending on the type of install you actually have to do to run the cable) is the new Opticis USB cable which are fibre, can go 40 meters and sound fabulous. But they are not a true inwall product that can be snaked through conduit etc.
http://industrialcomponent.com/opticis/optusbext.html
As for what and why... USB is a consumer format that is installed on virtually every PC built. Billions of these are out there and they are used for everything from cameras to printers to audio. In short they are a global standard, and for the most part a manufacturer can build once and sell everywhere.
Ethernet has always been a premium product aimed at the office/enterprise market. Much fewer computers are configured this way - probably proportionately fewer every year. So its simply not a very attractive environment to develop consumer products for. Which is why at least for the moment Squeezebox and Roku have the market to themselves.
The good news is that you will be very happy with the Squeezebox - just think of it as a networked DAC - which is one of the things it is.
http://industrialcomponent.com/opticis/optusbext.html
As for what and why... USB is a consumer format that is installed on virtually every PC built. Billions of these are out there and they are used for everything from cameras to printers to audio. In short they are a global standard, and for the most part a manufacturer can build once and sell everywhere.
Ethernet has always been a premium product aimed at the office/enterprise market. Much fewer computers are configured this way - probably proportionately fewer every year. So its simply not a very attractive environment to develop consumer products for. Which is why at least for the moment Squeezebox and Roku have the market to themselves.
The good news is that you will be very happy with the Squeezebox - just think of it as a networked DAC - which is one of the things it is.