Nice post and you raise alot of valid points. However I'm not an unrealistic fan, I'm not expecting them to drop badname and Its my life for Roulette and Bitter wine (although it would be nice

). The 4 shows I saw at the 02, the set was the same structure but just by adding those 1-2 rare songs that come out of no-where send the diehards home happy an on a high.
I want some spontaneity, like for the last night at the 02 Jon started the intro to prayer, stopped and said "nah dont wanna play that yet" and went into TD and HArd letting you go, fan****ingtastic!
Like this (and yeah I know its harping back to the mid 90's)
Since then weve had 4 new studio albums, so they should be doing this kinda thing more.
TBH if any band I saw did a crap cover in their encore I would think, why the hell did they do that.