Indeed! Why are our expensive avionics so unreliable? Whereas my car radio/cassette/CD system has been 100% reliable for the last 7 years, the displays even on our King KX155s and our King ADFs and DMEs seem to last barely a couple of years. Our Narco SSRs are being replaced with Garmins as they reach by their evident use-by date; however, the one Garmin GNC250 which needed the VHF comm part repaired came back quickly and better-than-new with all the various software upgrades incorporated.