Interesting conversation...although I don't invest much in pursuing SOA digital, since my collection is mostly vinyl, last year I decided that I should check out something newer than my trusty Theta DSPro Basic IIIa (fed from a Pearl transport), and picked up an MSB Gold Link with the P1000 Power Base. On paper, it looked like a step up - 24/96 (or 24/132) upsampling, newer design, separate power supply, hotter company for DAC's (Theta seem to have dropped out of anything not HT-related on this front for the time being), top-model version of a widely well-reviewed piece.
In actuality, my old Theta, using just standard old oversampling and their proprietary digital filtering, won out over the MSB, whether upsampling was engaged or not. (I wrote a long thread related to this audition entitled "Upsampling put to the Test" - click on my Threads to read). So I sold the MSB and upgraded my digital IC instead. Lately, I've been able to start using the balanced XLR analog outputs, and have upgraded the PC's too, and with the sound I'm getting, I'm not really curious for now about 'improved' digital gear. The DAC is around 7 years old or so, and goes for well under $1K used, so one might think it wouldn't be competitive anymore to judge by the prevailing trends, but I wonder...Just an anecdote...