Sides on the Big Bank would be beneficial to all sides of the ground and the team due to the increased noise and atmosphere.Probably a figure some way north of the scoreboard cost and we all know the debate that caused. At least the scoreboard is beneficial to 3 sides of SJP.
The bank makes a decent noise as it is, but if the acoustics could be improved with sides on it then I'm all for a cost analysis. If the right materials can be shown to make a significant improvement to channelling the noise and the cost is no more then 250k then its worth looking into.