With bigger amounts there is no reason to not use fee.
righ
I think bitcoin fee is very low if you compare it with Bank
only 0.02$-0.03$ (10.000satosi) to get high priority transaction
Fees are lower than banks yes, however when you only have some tiny coins from e.g. faucets then it can get tricky. Your overall transaction will be over the size limit and you will need to pay a fee. And if the amount you want to send is not big enough the fee can be a larger percentage of the actual transaction.
I used to take some minor inputs to some exchange addresses, however that's not good either as they have withdrawal fees as was mentioned before.
If I don't need the transaction to go through asap, I don't send a fee. If I need it on time, I add a fee.