I should love it if one of these concerts were to come to England, and I can guarantee I'd be straight in line to snap up a few tickets.
Dectilon, I think you just have to accept some people have different tastes to you, you also seem to forget that a lot of music, classical and modern has a good degree of repetition in, if the music is a pleasure to listen to however, then it isn't a huge problem. There are also those pieces (often those used for the longer cutscenes) that do have more variiation, as the composer knows that they'll have a certain amount of time to play with in the cutscene, whereas somewhere like the world map, the player may not spend much time there so the composer may choose to use a particular lietmotif that will grab the listeners attention quickly.
Uematsu is good at this, his games often feature subtle variations on a particular theme, depending on the timing and locale the player is in, something that is especially prevalant in FFIX, with the tune for 'Melodies of Life' being used often in the soundtrack.
Also, have you listened to any of the aranged versions, the FFVI piano collection for instance? They often feature more variation than the in game version, as th composer knows that in-game and out-game music needs to met different needs.