I went and tried to sink some coupons into it. 3.5k to be precise. Could afford 8 frags, so a minimum of 15k is needed. Still regret it :D I did not go for the clothings as I could not get it anyway so I chose to get Hanzo frags. Still ... 3.5k coupons and could afford 10 Hanzo frags. Unless you have 20k ingots saved as the event gets better and better (if you sink in 20-30k the prices of stuff will actually become pretty low as you will be getting 300% more coins) so that you c*so buy minato and BP Hidan, possibly both. Do not go for tree event. But well ... when we first got summer sai clothing it was for the biggest spender on the server and people spent even 800 dollars to get. 2 weeks later we got it in lucky board for 4k. My suggestion is to wait. Any clothing that costs more than 4k is just a waste.