Funny... my very first concert ever was Aerosmith... my second concert ever was ZZ Top... both on City Island in Harrisburg back in the 80s, when I was like 14/15. Anyway, I might have to try to make one of these shows. I've seen Aerosmith a good handful of times and they always put on a great show. Honestly I can't remember if I was ever able to catch another ZZ Top show... I think I'm due, lol. 
Tickets are WAY too expensive for me though. I see some of the venues have lower-priced lawn/general admission tickets, but I don't like to buy those til like the day of the show, because of weather. But I betcha the high prices are not gonna go over very well, and this will be one of those tours where you can show up without a ticket and find a deal outside the show, and probably better seats than you would've gotten otherwise. Basically the same deal as the current Dead tour. 
Here's a link to yesterday's article with the tour dates lists, so far...
http://www.billboard.com/bbcom/news/aer … 1734.story
--Vik 