A couple of things. PS Audio is selling the pair for that price because it wants to clear out their CD players from their inventory and up the sales of their MKII DAC. Pure and simple. Most of their customers are not using a transport anymore.
Now as to your original question.
Until a few weeks ago I was one of the first to own the PSA PW DAC MKI with Bridge along with the PW Transport and one of the first with the PW DAC MKII. I sold the Transport a while ago to have all my music as a data file on a computer.
The PW MKII sounds great, but now there are other newer DACs that are surpassing it IMHO.
For less money, DSD support, better sound and added features check out the following.
1) The Hilo by Lynx.
2) The e20 MKIII with optional clock by exaSound
3) The Platinum by Antelope Audio
I like these for their sound to price performance.
I have heard the first two and they both sound great but I went with the exaSound. If I had the extra money to spend I would have tried the Platinum vs the e20 in a home demo shootout and bought the better sounding of the two. All of the above have home demo trial periods.