I don't have any, i was selling them daily since i thought it will drop in price, and still think it will. After the presale the vouchers value 'll be much less. I guess the last few days 'll be a race to sell the remaining vouchers for the ones who have many while they still worth more than they 'll after. I'm still waiting... :) Right now the presale period is at 70%, while the used vouchers at 22,5%, there is still a huge gap and it should shrink only if the price drops.
I will only buy 50 packs during the presale if the overall price 'll be below a certain price tag.
Or, there will be a rush to buy for people to get to the next tier for bonuses :)
People are waiting to collect all they can to buy with, as many have to wait toward the end to get to 100, 500 or 2000 (unless they buy), so then at the end, I suspect pretty much all vouchers will be used for presale.
We will see how it is going to be :) But for sure, i will act accordingly to my plans, if the price 'll not drop to a certain point, i will buy packs after the presale and 'll miss the Blight promo... I made my plans accordingly to my possibilities, and well my foresight might be wrong, but i have to stay within my boundaries. Right now i don't see a point to participate in the presale below 50 packs.