Reading all your responses in this thread, it's clear that you want URLs to sites you can go look at rather than descriptions of times when this has been useful to individuals. You can find lots of examples of things built using data binding at the angularjs[0] and ember[1] showcase sites. A particularly well-known example of a nice application that relies heavily on data binding is discourse[2].

[0]: https://builtwith.angularjs.org/ [1]: http://emberjs.com/ember-users/ [2]: http://www.discourse.org/

Some people prefer to do things your way, but lots of us really do like this sort of data binding and find it to be very useful.