It’s definitely a better deal if you have only low-power devices. The high-current module is what drives up the price, plus if you get one regular-current and one high-current module, which is what you need with an exaSound DAC and the PlayPoint, you’re at the upper limit of what W4S says you can put in the PS-1 — that raises a reddish flag for me, especially since I don’t have any idea of how the PS-1’s impact on SQ would compare with that from LPSes from any of the other “major” LPS brands.
(Nothing against W4S. I have their pre-amp and I’m quite happy with it. I also used to use their ST-500 power amp, and that’s a good value, IMO. If anyone wants mine —it’s not a Mk II — it’s for sale.)