I went for anbu clothing in lucky board( I previously had some frags). I collected the data I got if it helps anybody in deciding what to go. This is a rough *ysis.

So basically i spent 2900 coupons and got 145 dices which yielded 965 points. So 1 dice roughly gives 6.6 points and since there was a very rare case of 100 points in 10 rolls, I am taking 6.5 to be the rough average per dice. 25 points for 1 frags, so for 50 frags you will need 1250 points. 1250 points would need approximate 192 dice. Over the week you can collect 14 free dices and you would need 178 dices and 3560 to entirely synthesize anbu clothing from lucky board.

These values are not considering the value of the items obtained from the board. I didnt keep track of drops for the first few dices. I obtained following things for 120 dices.

I havent accounted for the starting point, free roll, reverse direction etc. So there might be a mismatch between total items obtained and number of dices. But overall for the 2400 coupons I get more than 2000 coupons value item. I havent put value for some things, because I dont know the market price of these items. If any of you know it I can add it. The values I have put are maximum prices, and most of these things are available at much more discounted prices.

Now for 2900 coupon( here its 2900 because its overall case, and in earlier case i hadn't kept account for drops of 500 coupons worth of dice) I got total of 25 lucky ninja packs.

Around 1796 coupons worth of things from lucky ninja packs corresponding to 2900 coupon spending in this event. Here again its a rough value and I haven't added values for some items as i am unsure. So take it with a pinch of salt.

Overall as said by many people over time, this remains one of the best events of the game. If you want to find out value of anything in this board use average value of 6.5 per dice. Counting the board drops and packs this seems a great event. Does this make sense? If it does it might help you to make decisions for this weeks lucky board.