Show at Verizon in 2002, along with many other arena shows, were cancelled, presumably as a result of poor ticket sales (disguised as 'illness'). In 2006 they played 1st Mariner - no idea how that tour sold generally.
Certainly before the album came out, most folks couldn't wrap there head around the surreal concept of GNR being Axl, Buckethead, Tommy Stinson etc. Now its easier - since the GNR brand has been shapeshifted and people may be more comfortable that this GNR isn't the old GNR but may still have some value.
Personally I think Axl should continue to lay low, play a handfull of selected big shows that can be hyped individually (MSG, The Forum or Staples), lay low some more, and then maybe reform the old band for massive tour . . . although it seems like that ship has sailed