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I can't answer the rest of what you've asked, but I think in this particular question, the persons who don't go might well end up with a guilty conscience, if they did go.
I think it's something along the lines of:
"I can't, in good conscience, put money into RA's coffers just to satisfy my own desire to see the Wallabies play in my home town. Under different circumstances, I'd love to go; but I'm happy with the knowledge that I haven't given them a cent under these circumstances, such as they are."
Now I can see how some would find that bloody-minded; but as far as cutting off one's nose to spite one's face, that's a tricky one. How is it tricky? Well, there's a distinct possibility that had they paid and gone, they may have felt like shit, no matter how the result turned out. In their minds, it would be similar to betraying the Force and/or the WA rugby community, while contributing to the current RA regime financially. By not paying and going, they are actually avoiding punishing themselves. Sporting tribalism is an emotional thing after all, especially in a situation such as this, where there are justifiable gripes.
Now of course, if they legitimately regret not going and missing out on Australia thrashing New Zealand, then they've certainly cut off their nose to spite their face. Really all depends on a case-by-case basis.