@jdavis37 I owned the Antipodes DX--it had SPDIF out. I now own the Antipodes DX3. It has USB out only that I then feed to a DEQX Premate that has SPDIF out to my DAC. If your DAC performs better via SPDIF than USB, I recommend this approach. FWIW, I'm a strong advocate for Antipodes servers. However, they seem to constantly be changing their "flagship" and it seems this has made consumers cautious in pulling the trigger on their products. The EX/CX combo two box "flagship" came out less than a year or so after the launch of the DX3 "flagship."
Please confirm whether they told you they would be going back to an SPDIF out option on their newer EX/CX combo line up. If so, this would be pretty big news since in the very recent past they have strongly argued that their architecture is specifically optimized for USB output (as @david_ten notes) and as such was superior to SPDIF output (their words not mine).