the prices are absolutely ridiculous though.
I've tries quite a few phasers. the best sounding one to me was the Maestro Phase Shifter, but not very flexible and completely impractical. The Moog was my next favorite, flexible but still impractical and the bypass was garbage.
The Psilocybe is great but needs a volume control. I had mine modded with a 20db gain stage after the effect and now it works really well for me. I prefer the tone of OTA phasers though, I'm going to give the Whetstone another try next week as I found a used one for an ok price.
Cusack Tap-a-Phase, lots of features and works really well with bass, has an internal trim for volume. My only complaint is that it sounds more like a wah than a phaser. does not have the rich full sound of the Maestro, Moog or Psilocybe. But the tap tempo, multiple wave forms, ramp up and down functions are lots of fun and easy to use in a live environment without taking up a ton of space. It does not get enough love around here.
Some other nice phasers I have tried are:
The Grand Orbiter - lacks a volume control, that's a no go for me, but sounds good at home.
VFE Enterprise - kind of unique and has some cool tones, but again, no volume control.
Phase 90 - not enough control for me and gets too thin at points but gives you a classic sound.
Phase 100 - similar to the the phase 90 but a little more modern sounding. does not get as thin sounding but loses some of the 90s "magic".