The only reason to display the subtotal (a subtotal being "the total of one set of a larger group of figures to be added") as "$387 x4" is to deceive the customer.
I may be buying 2, 4, or 6 tickets but I’m going to pick the seat location based on the individual seat price. So I want to see if the seat is $998 seat or a $700 or a $2000 seat. I think the decision point is based on the item price.