Well, everyone is entitled to an opinion. Everyone is free to spend his money in the way he deems fit. No body can stop anyone from spending money, even if it is on things that don't add value or don't add enough value. Be it a number plate or a mains cable.
If the difference is in someone's mind, no one can help it. Human psychology, if someone spent 20-30k on an IC, will he ever accept it was a bad purchase?
Trouble begins when such people go and announce publicly that they find difference that either don't exist, or are imperceivable or immeasurable. The trouble begins when such people begin with arrogant statement challenging others' hearing capability or buying capacity. I am against that display of arrogance. If those people who think these things make as much difference as they claim then I dare them to prove. If they just want to shout at the top of their voice saying they *hear* a difference, my message to them is - go back and enjoy your sound, rather than telling others how foolish you are to have spent ridiculous amounts of money on things that barely return perceivable difference rather then spending on components where it would have given much bigger and perceivable return.
It is being said repeatedly that some people are saying "cables don't make difference". I still have to see if anyone said that on this forum. Anyone cares to quote? Or they are here just to have a pointless argument?
It has been said umpteenth time that cables do make a difference. How much difference is the question? Is that difference perceivable, measurable, is the question. Is that difference worth the money is the question. Could that money have been spent to improve the sound in a better way, is the question.
My message to the newcomers and innocent buyers is - find a cable that will transfer the signal without doing anything to it. Don't buy a cable someone says will brighten the sound, or smoothen out the edginess of trebles or add weight to the bass. Stay away from these cables. Because, if you buy this cable, you are spending money on curing a disease, which resulted from buying a wrong source or a wrong amp. Don't try to cover that up with an expensive cable. Just change that erring component. That way when you upgrade, your cables (which is a transparent medium) will still hold good. If you bought a cable which was covering up for another component, you would need to change cables each time you change any component in your system.
If you go down the route of using fancy cable that colors the sound in a way it covers up for another component, probably you don't need an advice from others. You know your sound and are a guru in your own right and can decide for yourself. The best thing for you is to buy and try every cable that appears on the market. That way you will be happy spending your money, have a sense of gratification and fulfillment. Just be sure to not pollute these forums with the noise afterwards, we can do with a bit of peace here.