I was thinking about what you said.
We continuing season ticket holders might be chumps for sitting and watching a poor product on the field. Although in our crew's case, I'd argue that, for our tailgate crew, tailgating with each other makes it completely worth both the time and expense, or we wouldn't do it.
But I disagree about being probably being chumps from a purely economic standpoint. At least for many of us.
Sure, if the cost of your season tickets is economically significant to you, and the game result or product on the field is all that matters to you, then you probably ought to think twice or three times about purchasing them, even when the team is winning. If that were the case for me, I would probably watch from home myself.
But for many of us, it's just too inexpensive a form of entertainment to matter. My two season tickets, with parking and seat-cushions, plus my tailgate costs for the season, are just not a significant expense for me. I live 15 minutes from the field, so no travel time lost there. When a game becomes non-competitive, we leave. So there's no time lost there either.
So... I get to have a great time outdoors with great friends that I love. I get to enjoy some great food and drinks. I get to support my team when they're down and need that support the most. And I get to do all that at an expense that's insignificant to me.
If that's someone's idea of being a chump, then I guess I'm one happy chump. :)