I think some other considerations are at play here. While we all look at this latest deal at face value (our teams now make more than SEC teams), it seems to me some 3-D chess is being played here and Warren probably will deserve some credit after the "time will tell" portion of the next 5-10 years. While I'm not a a fan of being in bed with NBC and their relationship with Notre Dame, nor happy with how ESPN has treated college football as their private amusement park, consider this:
Why would ESPN now feel any pressure to match the B10 package with the SEC? Now, who does the SEC use as leverage in negotiation? "Well give us our billion dollars or we will take our games to CBS... I mean NBC... rather Fox..." Of course ESPN will pay a fair price because they need the content, but there won't be a media entity desperate enough to force ESPN's hand on the money negotiations. The only other option would be some type of streaming option which (at least currently) seems far removed from being viable as a revenue stream, nor a service the SEC would like to force on their fans.
As for NBC and Notre Dame? Certainly more of a "time will tell" scenario, but it seems this deal will continue to isolate ND. Forcing them into a corner on the decision to join up or face the real possibility of being marginalized in the eyes of media partners. Will be interesting to see how B10 games broadcast on NBC will compare to their ratings vs ND games. At some point I think NBC will realize that paying a premium for ND isn't beneficial to their bottom line. Content is king and NBC just accessed an exponential increase in it's ability to deliver. Think they'll want to go back to a limited content on the hopes that ND will have a great season here and there? Think NBC will continue to make concessions for ND when they have 16-20 other athletic partners to consider? Heck, NBC will now have the opportunity to broadcast some marquee ND matchups simply because of their B10 relationship ... without an exclusive agreement with Notre Dame. At some point, the synergy of the Big10 becomes too lucrative and beneficial for partners to ignore. The reach of academic, research, corporate and political tentacles is massive and almost impossible to leave because of the benefits enjoyed thru association. I could certainly see a scenario where NBC is applying pressure on ND to accept B10 membership ... for the benefit of both.
It's hard to tell exactly how this all shakes out, but the trajectory is 2 power conferences. I see no way they give Championship game access to an independent ND. Pressure is now on and they had better be damn good from day one until the foreseeable future, or they will be forced to join a conference.