A band like DT will have a lot of newer fans, and younger fans, and they're gonna be priced out of the market. Add in travel costs, and not everyone can "drop a couple of hundred" to go to a gig.
I'm lucky, I've seen DT numerous times since 1993, and I can afford Gold VIP tickets to see 'em again. Not everyone can - I feel sorry for younger DT fans who've never seen them and just can't afford it.
More to the point, if ticket prices do keep going up, I'm gonna have to seriously think about going to shows in the future, and I'm sure I won't be alone.
And yeah, I was also pretty underwhelmed with the ADTOE tour for the money. Look what Rush laid on for a similar price...