I just thought of another thing. Indie companies have been pioneering the whole iPPV market for a few years now.
Vince just made them all look like chumps. Most indie companies charge $10 - $15 per show, VOD or Live. These shows are usually low quality and are hit and miss if they work or not. Vince is giving you everything from live shows to access to the vault to new original content with professional production qualities, on all devices at $10 per month.
Biggest things you can compare it to in the indie worlds are WWNLive, Ring Of Honor's Ringside Membership and Smart Mark Video On Demand. None of them provide the level of service for the value that you'll get from WWE Network though.
This is of course, assuming that it all works....and I'm fairly certain that by partnering with the guys behind MLB.tv, it will.
To be honest, the only company to really turn iPPVs into a big business is NJPW (WK7 in 2013 had over 100 thousand buys in Japan, for instance, and it's been booming since 2012). Most places like ROH or whoever, do absolutely minute numbers.
NJPW is on the rise too, so iPPVs will continue to grow as their business, but the US indie companies don't really have the technology or money to make them viable.
On WWE and PPVs, the WON posited this a while back, which is that PPVs will become very unimportant as time goes on, more like TV specials like what Impact does, and that really WWE will be TV focused, with no "end goals" of a PPV anymore, just a straight, continuous TV thing. COmbine the Network making PPVs standardized and not reliant on buyrates, and also the new TV rights fees they're negotiating for, and they will be putting much more emphasis on RAW and Smackdown in the future.