Weeks can be a long time if it doesn't work out. And that is, by your own comment, in the good times. The good times don't last forever. Upon some dice roll it is going to turn, and when that one doesn't work out now you could be looking at months or years.

Staying put isn't risk-free either. Not by any stretch. But is comparatively less risky. It is the devil you know, hence the lower risk premium.