I am more bothered by people with 15 180mm gyutos, clearly they should be 240s and at least 30.
I feel the same way as you when people with 30 gyutos and 50 natural stones and 20 synthetic stones complain about the price of diamond stones
We all do it though, everyone has something they are ok spending unreasonable amounts on and don't want to spend relatively little to improve some other aspects of their lives. I have very well to do friends that have nice houses, spend a crap load on vacations, expensive cars, restaurants, gambling, entertaining, etc. They have money. $150 for a good chef knife is their absolute upper limit and they are stretching and not too happy about spending this much, these are the same people who would spend that to have sushi for lunch in one of the local places.