11-13-15: CalvinjThere are 2 simple answers to OP question. You can ask this same question about any commodity, cars, clothing ... Either the purchase is a status symbol or superior performance.
Why do others feel the need to ask why? Hmmmm? Watching another man's pockets! Oh no it's worse at Hong another man's cables!!!
This thread is more a reflection of the OP and members that criticize how others spend their money. They lack the resources sitting outside the fence so will criticize others to justify their own situation.