I use Moon Audio Silver Dragon cables in both a XLR pair and a 1/8" interconnect. XLR cables were $400 for the pair and the interconnect was around $100. These are eight-wire solid silver conductor shielded cables with gold Neutrik XLR connectors. The interconnect is the same, but with right-angle gold Switchcraft connectors. Everything is handmade. Expensive? Yes. But they are also the most revealing cables with the highest build quality of any that I have ever used.
Experts say that a good rule of thumb is to spend around 10% of the value of your playback system on cables. Extending this to my recording system, I am around that figure, maybe closer to 15%. I don't have a problem with this. Even I think that a $2000 pair of cables would be overkill in my system. But if I had $20,000 of recording equipment, I may change my tune after auditioning various cables.
As a point of comparison, I have used Canare StarQuad, Audio Magic X-Stream, and Monster Cables in my system. The Moon Audios beat them hands, down. Monster Cables were pure garbage; so muddy that I thought that something was wrong with my system. The Canare and the Audio Magic were so close that I would have been happy with either. But to say that "all cables sound the same" is just wrong, IMHO, as my Monster Cable experience shows.