Its not a swamp, any more than pre-amps or speakers are a swamp. The only difference is the everyone can talk about speakers and amps without mosquitoes, snakes, and crocodiles coming after you. Its not the wire that makes the swamp but the putrid creatures lurking in wait for unsuspecting victims. You go looking for better sound with speakers no problem. You go looking for better sound with wires the swamp creatures come after you.
Starting from ordinary wire everything is a huge step up. There's even bigger steps up from there, but that's where it gets a little more of a challenge. Not because there aren't lots better, but because wire is no different than anything else. You have to pay just as much attention to listener reviews of wire as anything else. Do that and you will be amazed how much better your system can get doing nothing more than upgrading wire.
Starting from ordinary wire everything is a huge step up. There's even bigger steps up from there, but that's where it gets a little more of a challenge. Not because there aren't lots better, but because wire is no different than anything else. You have to pay just as much attention to listener reviews of wire as anything else. Do that and you will be amazed how much better your system can get doing nothing more than upgrading wire.