In a perfect world for me as a Zep fan(well nearly perfect), I wish Robert would do what somebody like Neil Young does. Every so often he cranks it up with Crazy Horse, does a solo record and tour, does a Buffalo Springfield tour, etc. That's what frustrates me with seeing clips of tunes like "Bron-Y-Aur Stomp" live done that faithfully, Jimmy should be the one in the band next to him(at least sometimes) on acoustic guitar.