Binghi,
Your point is taken, but you let Garmin worry about that, they just give you a new screen.
It will be interesting to see the CFIT accident rate in the future as more aircraft are equiped with synthetic vision.
As for Aspen avionics units, we had 3 Seminoles and all had significant problems with teh Aspen unit. Either failing completely, or showing a 30 deg AoB when you were wings level, HDG out by 60 deg. One even caught fire (the Aspen that is)...well I really mean it produced smoke.