I generally do not chase technology, so having a 7 year old D200 would be just fine, if it worked. I can compensate, usually, for the ISO issues, and for the sports shooting I do, the APS-C sensor is fine. Sure, having an FX camera would be nice, but not a requirement.
I do agree, however, about the financial sense of repairing it vs. getting a newer camera. If the cost to fix it holds as indicated above, then the fix will be 80% of what I paid for it, which doesn't seem like a financially sound decision.