I go to golfsmith and right now you can get Nike 20Xi for $47 per dozen, buy 2 get one free, which cuts the cost to $31.33 per dozen. You can also get the Taylor Made Penta buy 2 get one free.
I dont know how or why you wouldnt go stock up now and get the price you want and play the best ball available (both the Nike and the Penta are comparable to Pro V1).
I've been doing this for almost a decade. I bought numerous boxes of Nike One Blacks, the Tour D's, and now I'm stocking up on 20XI-X's. I refuse to pay more than around 30 dollars for any golf ball, but yet I still can play with tour balls by stocking up on previous models when they run sells like buy 2 get one free.
I'll never ever play a Titleist golf ball because they are elitist and will not allow their items to be on sell. I just give them the finger and play tour level balls from reasonable manufacturers that don't expect every golfer to make 6 figures so they can afford ProV1's. (sorry this is my pet peeve)