Please do enlighten us as to this “Mercedes” of SPG’s and how it is better…
Wow, two Shearwaters and two transmitters -- didn't quite know who I was dealing with . . . just getting chills.
Who really cares?
In response to your rather snide question, I have had some great analogue Scubapro gauges that have stood the test of time, at well over thirty-plus years without issue; so too a few Poseidon and Suunto gauges (made in Finland, Finland, Finland) of similar ages and some even older.
"[H]ow is it better?" -- well, none of those gauges (and I have accrued quite a bit of gear over the years) have ever "frozen" on me, fallen apart, or have somehow lost accuracy, when compared to digital counterparts -- so too, any of my analogue depth gauges. Even those button gauges on my pony bottles, the complaint of so many, have lasted years.
On the other hand, I have had several Oceanic Datamax Pros (among the first AI computers -- a real brick) crap out in the early 1990s, as they were highly prone to flooding; two Suunto Cobras with faulty depth sensors which would haphazardly also enter some violation mode on a shallow first dive, that no one seemed able to explain, least of all Suunto-Oy; then there's my niece's spanking new Shearwater which regularly loses twenty percent of its charge over a couple of days -- and she's already on her second or, maybe, third battery by now -- we just gave her a Poseidon Cirrus double console for Christmas,
sans battery.
I just bank on simple-stupid redundancy and have yet to be disappointed -- trust but verify.
I did, however, once lose an SPG and a Jetstream second stage to a lifted RAV4, driven by an sub-idiot on his phone.
Other than that, just hoses and spools were the only things replaced over time; but that was to be expected.
Can't be just the luck of the draw or an outlier -- not that lucky . . .