What do you do for a living? I take it you're self-employed or work in a industry suffering severe downturn from the recession (ie commercial construction) where large numbers of people are being laid off. Half the problem with the recession is that average joe wage earners who aren't in any immediate financial trouble get spooked by the media and stop spending money, which only makes things worse.
Economics lesson aside, if it weren't for the recession would you still be arguing the same point?
Frivolous? I never suggested buying rare fish at the expense of your weekly food budget, obviously if you can't afford it then you can't have it, thats just a simple fact of the hobby. But don't hate the shops/importers for charging a high price for rare fish just because you're not willing to pay it. And what is a fair price? Do you know what those $165 fish cost the retailer/wholesaler? You're making a big assumption by presuming that because they're expensive they have a big mark up on them. I know for a fact that more expensive fish don't have the same mark up (as a percent) as cheaper fish.
That is only true to a point. There may be a few rich people who just want to show off to their friends but spending loads on fish doesn't automatically put you in that category. I'd say the bulk of people spending big dollars on fish are very committed, and I can't help but think you're being a bit of a typical kiwi tall-poppy-chopper. I might spend a lot on fish, but I work damn hard for my money and have made choices and sacrifices so that I can do so.
I guess for you it must just be a hobby, but for some of us its a passion....