Yet More Evidence...

I'm old. People named "Skyler" are now old enough to work in credit card call centers.

What Now?

I have quite a vexing conundrum. Allow me to set the stage:

On Monday, I was home on a vacation day and decided to bake some bread (no-knead bread in a dutch oven, if you must know). The bread was baking away in the oven, and I was sitting on the back patio, reading a book. I heard a single beep from the oven, and went in, thinking that my timer had gone off. However, instead of a completed timer, I was greeted with a display showing a fault code. Not thinking, I pressed the "Off" button on the stove to get get everything to reset (no, I didn't write down the fault code). This cleared the display, but did not turn off the gas. A flame was still burning, even though my oven showed the normal clock display (as it does when everything is off), and a "locked" message, indicating that the oven door had been locked, as it does when in a self-clean cycle. Thus began the troubleshooting process.

I first turned off the power to the oven, thinking that a power loss would cause the gas valve to close. However, after having the power off for a few minutes, the gas was still on (with a flame still burning, thankfully). I turned the oven back on, and it then decided that it was on a cool-down from a self-clean, even though the gas was still on. I eventually had to turn off the gas to the house, as the gas shut-off for the oven is conveniently placed behind the now nuclear-hot unit. The flame eventually went out, and the oven cooled down. The door unlocked itself, and I retrieved my lump of charcoal from the rack.

The short story of what follows is this:

• The unit is well out of warranty (even the extended warranty).
• Sears was convinced to pay for a tech due to a possible product safety issue.
• The tech found nothing wrong, and the oven behaved perfectly

The tech thought that it might have been either a stuck valve, or bad controller, but both tested out just fine. Now I am left with three choices:

1. Keep a possibly homicidal stove as-is until it breaks again.
2. Replace $400 of parts on an $750 stove
3. Throw away a potentially perfectly good stove and replace it

So I ask, what now?