Yes, I attend the Symphony. In fact, I'm going this evening.
I go BECAUSE I enjoy it.
Your third question is a bit tricky...do you mean, would I cross a picket line to see a scab symphony? No.
Would I keep going if a strike occurred and was resolved, regardless of the battles and new management? It would depend on how the current musicians in the Symphony feel about these issues. I am fully in support of them. They have been emotionally and otherwise beaten down for several years and are currently being strong-armed by a management negotiator who has destroyed at least one other orchestra in his history.
I think the fact that I care is evident, and yes, Seattle needs a symphony.
It also could use an NBA franchise, but that's another story altogether...or is it? We seem to be satisfied being a mediocre city in many ways.