I can't even answer this question as I own an entire house just for daycare and the maintain and upkeep on it can sometimes be a full time job for my hubby.
I've had a few minor things need replacing but I think the biggest intentional thing I've had to replace was our air conditioner. One of my older SA kids ruined the back of it by shoving sticks and rocks inside.
It was a whole house air conditioner that cost $500-$700 to replace.
It was one of a dozen or more things he intentionally ruined and one the reasons I no longer accept school aged kids anymore.
DaycareDiva....I am sorry to hear about your dishwasher.
I think the DCK that broke it should be on dishes duty for the next few weeks and do all the dished by hand.