Some companies only offer the 1.5 meter lengths. I've seen photos that show that length measures less distortion, but if it's audible and will actually sound better I don't know. I've tried quite a few myself, all different lengths.The Kimber Illuminati I had long ago was very detailed, overly so for the equipment I owned at the time.IME the $ amount has no bearing on how it will fit into your system and be the right match. If you have some spare ICs stored away give one of those a try.Sometimes they work surprisingly well.Whenever I've auditioned ICs I always tried one as a digital cable.
Digital coax cables
I stream Qobuz from a standalone streamer to a DAC. I use a digital coax cable [Audioquest cinnamon, about $90. Will one of the more expensive cables make much difference? Some claim no difference, it is before the DAC so it makes no difference. Others claim everything makes a difference. So......