Wrestlemania 29 built on part time performers

In case you're still one of those fans who don't think that marketing is more important than the actual in ring product in WWE, take a look at the top three matches at Wrestlemania 29. Four of the six wrestlers (Undertaker, Brock Lesnar, Rock and Triple H) are all part time performers.
Joseph Park vs D Lo Brown
MVP performing in Houston
CM Punk expected return date
Yoshi Tatsu released
Rock as Luke Cage
Rock responds to Marvel
Kane possibly running for Senate
Kharma dancing at a club