<sigh> OK, you asked for it. Here's the post in all its mind-numbing, humourless, fence-sitting neutrality:
'IMO, there are two issues at stake with any upgrade.
1. Is this new kit/accessory/tweak a worthwhile improvement over what I had before? (This must be a subjective decision, based on the individual's perception of such things as value for money, diminishing returns, amount of hassle required, etc).
2. Do I care whether anyone else agrees that it's an improvement?
If your only concern is 1), then all 'explanations' and 'proofs' are beside the point. You have spent your own money, you perceive an improvement, you have nothing to prove to anyone else. However, if 2) also matters, then you introduce the concept of proof, because you need/want to convince others that the improvement is 'real' and not just imaginary. But proof implies successfully demonstrating a difference: 'Here is my system without the new kit/accessory/tweak, and here it is in its improved state'. If the other person agrees, job done. If they don't agree, do you question your own opinion, or do you assume they're deaf or otherwise incapable of appreciating the finer things in life?
Even at this point, however, explanations aren't needed; they only come into it if you want them to. Once you do embark upon explanations, however, you would be wise to acquaint yourself with the technicalities of what you're trying to explain, otherwise you'll end up resorting to bluster, hand-waving and assertion.'