This is the stock response to any thread like this, and nobody is going to disagree. I spend £8 on coffee, for example, which is excessive when I could but instant from Lidl for £2.
However, people are paying preposterous amounts of money for things that Jeff Beck ( a great artist but hardly a generational talent who’ll be remembered forever) may not have ever touched or used.
The second thing is that these amounts are huge. Gross displays of wealth - like paying £10k for a gig bag, for example - are shocking.