Don't worry about going broke. You are now spending the inheritance you would have left for your daughter. It's now ALL for the grandbaby!
I have twin grandbabies and let me tell you...it's double the pleasure and double the fun! If I want to hold a girl, I grab the girl, if I want to hold the boy, I grab the boy. I can even do 2 at once! :)
Enjoy the grandbaby, they grow way too fast!