OK, the hard truth is that many would pay $3K for a non-runner.
I paid a bit less than that for my non-running G/S and then spent quite a bit as the transmission, final drive, heads and other systems required rebuilds.
If the bike looks decent, runs and drives well and has maintenance history it is underpriced
If it looks decent, runs and drives ok and has no history and has no obvious mechanical defects it is underpriced
If it doesn't run, but looks great, underpriced
Doesn't run and is rough and/or incompletemotor is free.... 50/50 being a deal or a dog