I don't know the brands Mogami and Gotham Audio stuff but if you take for example Audio Quest and you go to a HiFi shop and ask them to demo the cheapest audio cable of Audio Quest for you and the most expensive one of also Audio Quest; perhaps add a mid range cable from the same brand too. Just to get an idea of the difference between them then you seriously wouldn't believe your ears. I just recently (Autumn 2019) heard a demo for power cables for audio devices, not even the usual audio speaker cables, no just the power cables, just the standard strip that's packed with the device (amplifier for example) and the top line of Audio Quest (I think that cable costed Euro 60+k for just one cable! I know totally ridiculous) and a few of their (Audio Quest) mid line cables.
The funny thing was when they started to demo with the cheapest cable and after that the next (low) range power cable, you didn't hear much of a difference and you thought: "What a nonsense, I don't hear much difference and pay a few hundred for just a cable?" BS (bullshit)! Same for that next level from low level to medium level cable (around thousand plus), still didn't hear much difference and people started to walk away because they felt that was so much BS they couldn't believe it. I decide to stay a bit longer and took one of the places in the middle of the stereo spot where just a few people left (because where I stand before wasn't very good but the room was full, the demo's of that person are well known here in Germany from Stereo magazine). Then up to the top level cable, yes you could here a bit but of course that's not worth that 60k.
But now it comes... then they went back from the 60k cable to that "cheap" included cable that came with the device, suddenly the difference was so huge, you had to puke to listen to that standard cable. Technically almost can't be explained but there can be a huge difference. That 60k cable was a kind of fun but of course not realistic for most of the people so they went back to a mid range cable and then back to the standard cable and going back in quality you can hear the difference much better than the other way round.
Hence the same for audio cables.
The problem is that like me, you and billions of other people, you just don't want to believe it, it's technically difficult to explain (well one of the explanations is the copper quality, it's close to 100% copper that is ridiculous expensive and the insulation is complicated and expensive too) and you just can't understand it. But please do yourself a favour and go to a HiFi shop and ask for a Audio Quest cable demo (or any audio top brand but Audio Quest most HiFi shops have) and after that, I am sure, you will update your above comment :-) No, please don't be stubborn, just go to a HiFi shop and follow a demo ;-)
But for your wallet it's better to keep believing this is all BS and don't do that demo, because once you have heard that it can be better, you also want that few hundred or few thousands cable and you are seriously thinking of selling your house... so... yeah better don't do that demo ;-) It's better for your wallet!
But of course for a patch cable that's not all worth it, I agree. However for your speaker cables you might want to check this out.
Kind regards, Garfield.