So you suggest scanning for empty seats that have someone's towel/bag/shit on them, choosing a few to monitor, and then standing around like a moron, missing the fucking show because you're waiting to see if any of these douchebags actually come back to their seats. That's idiotic.
And then what? "Well, I've given the recommended 10-15 minutes of 'slack' time, I suppose I can consider actually sitting down?"
Fuck that. If your ass isn't in the seat, it isn't your seat. I come to ProgPower to watch the bands, not to monitor the seats to see if someone who is NOT there is coming back for them. That's absurd. I'll give *some* slack if an actual person from your group is still there to hold the seats, but that's it.
Even that is probably too much slack, though. A few years ago, after trying to find a seat for a while (before I got my current "fuck it" attitude), we finally went to sit down in some empty seats and were promptly told by someone next to them that "hey man, these are my friends' seats, they're coming right back."
I told the guy "that's fine. If/when your friends come back, I'll gladly give them back their seats. Until then, we're sitting here." He was fine with that, and guess what? We watched a FULL set from the next band, and HALF the set from the next band. They still hadn't come back, but we were done, so we left anyway.
"They're coming right back," my ass. Maybe that's what they told him (he was very nice about it), but it's a prime example of why the "saved seats" thing is pure bullshit.