I at first contemplated to get him, but I change my mind.

Its about 157 coupons to get 1 frag of him in this event.
Its about 200 coupons to get 1 frag of him in lucky board.

Yes, in absolute numbers, you save about 25% through this event, or about 50 coupons. However, in lucky board, the extra 50 coupons you spend, you get 10 extra items (since its 10 dice throws that gets you about 60 points).

So bottomline, like what the previous posters above have all mentioned. Wait for lucky board, and so will I. :lol