Vector pays for them all, no cost to the ratepayers.
Tell ya though it's freaking freaky if you happen to be going over the bridge when they fire them up. I was last week and it was nearly a undie changing event.
I stand corrected - good on Vector for securing the biggest bill-board that hasn't worked (given I didn't know they sponsored it, well kinda, when you mention it, I recall their brand name being associated... They have a big stadium in town don't they )
Was it Blue and Red as you were heading home from the club?