Gauge cluster 67 gto

I have the dash out, in bench testing the water temp and oil pressure gauges, I think they are both bad. In looking for replacements, ( I couldn't find any), I called Precision Pontiac, man told me they all go bad, that he could repair them for around $500. I told him I could buy a NEW cluster for that! He said that the aftermarket electronics parts were bad, wouldn't last and i would be tearing the dash out of the car not long after I installed them. So, was he right? Has anyone used Precision Pontiac? Are aftermarket gauges any good? I'm thinking about going with digital gauges? They any better?

Opinions would be greatly appreciated!
Thanks
LET