Well, it happened. The OTHER spring perch failed. As I stated above, the drivers-side perch failed a couple years ago, non-violently.
I was driving up to Midland, MI from Atlanta, and about 15 miles from my parent's place, the car made a huge clunk and dropped down on the right front. Luckily, there were no other cars around and I just pulled of onto the shoulder. At first I thought it was a flat, but when I saw the right front tire crammed in the fenderwell, I knew what happened. Come to find out, the whole spring actually fell out.
I ended up driving it the rest of the way, slowly, on back roads. Drove amazingly well for sitting on the bumpstop on one corner.
This one failed differently though. The first one seemed to come apart at a weld seam. This one seems to have broken in half.
Drivers-side perch, failed 12/27/04:
Passengers-side perch, failed 8/23/07: