Why did Cisco Systems acquire Scientific-Atlanta?

I believe that Cisco Systems' move to acquire Scientific-Atlanta the maker of Set Top Boxes (STB) is so wise even though it cost them $6.9 Billion.. Alot of people have not realized that the world is moving towards IP convergence.. The Treo!.. The Net/Telephones/TV who can't live without them now adays? Cisco's core business is Networking.. and it embarked into the IP Telephony scene a few years back.. and I remember having a conversation with someone from Nortel, the world leading communication equipment company, about the move of companies like Cisco and 3Com into their turf, and he was telling me that everyone is trying to get a piece of the pie. even those who had no experience in the Telephone business.. Well, at that time.. it was understandable that Cisco had nothing to do with telephony.. but IP telephony was a different case.. The whole idea behind the convergence of the 3 services is that you will be getting your Internet/Phone/TV from 1 source.. 1 fiber optic cable!.. so there is no need to have multiple cables everywhere and no co-ax cables to be seen in homes or offices no more.. Now, after Cisco's acquisition of Scientific-Atlanta.. Cisco is gearing itself to be one of the leaders in convergence solutions since it has all 3 elements of the deal which are Networking/VoIP/IPTV... and that in my own opinion the reason that they acquired Scientific-Atlanta.. and this is my reply to what news agencies have been reporting that Cisco is venturing outside it's core business... but that infact is it's core business from now on. How to be the dominant convergence solutions provider. IPTV is basically TV over Internet Protocol which means that you will be getting your TV channels through your internet connection.. which means better control on what you see.. and real time video on demand, interactive TV, your own showtimes, and many other options that are only possible with the power of the internet.