I t depends on your needs. Do you have only smaller tool boxes? Or an old Cman box? Or are you trying to flip it?
New its roughly $150-$160. Add in the used factor, that drops it to an absolute top price in pristine condition to about $110 on CL. Flea market price is 100, and garage sale price is $75.
Personally I would not pay more than $100 And that if i really needed it and was convinced of its longevity by taking a good look at it.
*Just saw that it's dented...right where you will see it all the time. $75 would be my top price... if I REALLY needed it.