If you wait another month or so, we will have new line of gauges.
Hopefully, the gaugepod for the S1 will be cheaper then aswell
There will be two different gauge lines:
Low cost: simple white dials with sensors included.
Top of the range: black dials with 270 degree scales. Steppermotor driven with digital pressure sensor (exactly the same as SPA is using). High precision with programmable alarm buzzer and light.
The good news is that both will be a lot cheaper then what you've seen in the market so far.
The gauges are in production at this moment and are expected here in about 30 days.