$1800.00 to install a sump pump & battery backup???

This can't be right.
My coworker who was having problems with her sump pump came in today and
said that they finally got someone who installed a new sump pump system
for $1800.00.This is a small residential home.
I asked, "What do you mean by 'sump pump system'? Do you mean just a new sump pump attached to the existing pvc?".
She said 'no' it was just a new sump pump and battery back up.
I told her that I think she was just screwed over.... $1800.00 to put on
a new sump pump doesn't make any sense for a small residential house.
Alittle while back I was looking at commercial grade sump pumps and I
could find some good ones (Zoeller brand) for $250.00... and that's for a
commercial sump pump.