As for seated vs standing, I agree that seats don't mean you need to actually sit (we never do), but what they do mean is that your place is secured from the time of purchase. If you bought eighth row center, you'll be in eighth row center. No hassle of having to get there at 6am (I exaggerate, for emphasis) to secure your place near the stage. Just have a fast connection and click fast on ticket day.
Yeah, if people actually stood, I would love that. But they don't at the shows in my area (and a lot of other shows I've seen clips of). That isn't the case for other bands I have seen that play theaters with seats, and the crowd stands (Queensryche, for example). But for DT, it is, and I HATE it.
I hate it also. I have just stood, and if they are mad behind me, ok. I have grown to really love GA. I was on my feet for 12 hours for Metallica last summer ( I am nearing ahem..60 now). And it was totally worth being waaay close and being crippled and grumpy on the way back to the hotel. I went to a venue for Dreamsonic in Denver that was all GA, save a few sidewall balcony seats. It was So Fun! My hubby hears how much fun I am having, and decided to go to Megadeth with me. And he hopped in the mosh pit lol! When I go to a concert with my 6'5"son, and the pits break out, he is my bodyguard, I am laughing all the time.
Sitting is for plays, and the Symphony.
The energy in a concert is a 2-way thing. Fans and the band. The fans can't have it both ways, sit and expect high energy in return from the band. At least, that is the way I see it.