I have 10-15 calculations and it I assume it would become difficult to maintain.
Also I cannot reuse measures, for example
I have a measure called PI = Sum(Demand) + Sum(Supply) and then another measure DSI = PI/2. With regular measures I can define PI (in the pivot table) and then use it in another measure as PI/2 (in the pivot table). I lose that functionality with the PICK approach.