Some people, many I would guess, have their rigs in living room so acoustic treatment may not be possible or be limited.
Your cables should be up to what you want to achieve. We all have the upgrade bug, one variable is the degree of it and another that some know it and say it openly and others don't. I too want to upgrade but I prefer to do rare but very significant upgrades, and I just did it. But my next upgrade is going to be much more expensive, it will be either replacing the phono stage with a great tube one or replacing the integrated. Both would be thousands of dollars. Cartridge too at some point, again at least $2k new.
Your cables should be up to what you want to achieve. We all have the upgrade bug, one variable is the degree of it and another that some know it and say it openly and others don't. I too want to upgrade but I prefer to do rare but very significant upgrades, and I just did it. But my next upgrade is going to be much more expensive, it will be either replacing the phono stage with a great tube one or replacing the integrated. Both would be thousands of dollars. Cartridge too at some point, again at least $2k new.