One of the best things about being free is that we can spend our money as we like, without fear of ridicule or reprisal. If it is ok to spend millions of dollars a year on cigarettes and drugs that will certainly kill us, then why not on a hobby that bring us joy? Just because you see it as insane, does not make it wrong. Or should we only waste our money on the brand and choices that you favor??

To each his own, and as long as the buyer goes into the deal fully aware let freedom of choice stand.