For those who get as excited about little details as I do:

When they go -> Tweezer Reprise (which is glorious in its own right) Page does something totally sweet when he kicks into the starting piano chords. Maybe he's done this in versions elsewhere but none that I can specifically recall. Basically he plays a reprise of the normal chords (which I believe the cycle of 4 is [D, E-sus4 (A-7/E?), F (D-/F?), G], something like that). Not to get bogged down in the technical detail but he plays the first pass through as normal with the exception of returning to the 2nd chord following the 4th, the next two passes through the cycle are noticeably 'reprised'. It's pretty cool, a tweezer reprise reprise (the original threeprise?), only fitting to cap off Tweezerfest....