Besides the fact I was burnt out on wrestling at least 2-3 years ago, I think part of it is the fact that none of the "new" post-2005 generation have an edge to their gimmick other than CM Punk (as realistic as you can get with a heel wrestling gimmick) and maybe the Shield (which is getting to be a bit repetitive) and the "old" generation pops up and goes through the same motions and disappear for another 8 months only to reappear older and less athletic.
It's also hard to invest time in the young talent; its becoming a vicious cycle where creative decides to push someone, doesn't know what to do with them, disappear for 2-4 weeks, reappear, get buried, then win money in the bank out of no where, win a heavyweight championship, still wrestle in the midcard, then ultimately lose to someone in the "old" generation. With the 40 hours of wrestling a month, there are very few, if any, sacred matchups out there we haven't seen or care for. There's not much to analyze on a wrestling forum when we've basically seen it all at this point. All you can really argue is the political bullshit that goes on backstage and that's something that will never change.