Roll your eyes if you will, but it will cost you in your pocketbook. So if wasting money on the latest-greatest DAC is what you want to do, be my guest but use your money.
If one uses the "scientific double-blind wizardry" that has been around for over 30 years, one quickly finds that threads like this one that has become littered with all sorts of double-talk about the inadequacy of SP/DIF and the latest-greatest asynchronous whatsis is all about people's illusions that they are hearing differences that are actually inaudible.
It's like this: You can improve the sound quality of your system for minimal cost but encounter some amount of hassle and even possibly negotiations with the dreaded WAF, or you can blow your money on unnecessary DACs and jittter busters, keep the wife happier with a succession of relatively small but vastly overpriced signal processors and golden digital players, and make zero actual progress on improving the sound quality of your audio system. It is really as easy as that!