It’s probably enough to attract retired docs who need to enhance their retirement savings in their 70s because everything has gotten so expensive & their younger second or third wife is still spending like he makes millions. All they are probably dreaming about is 2-3 weeks away from her so you can have some piece and quiet. Pick up a few shifts, get free room and board in a different city while you know you’re old but you still feel young. It could be freeing for some people to get an offer like this.