According to https://www.cryptopia.co.nz/Paytopia it is 2 000 000 dotcoin to list a coin, about 0.8 btc right now.

Are you going to adjust the price of listings as btc fluctuates?

Mindcoin is trying to raise funds for a listing but 0.8 btc is more than 10% of the marketcap of the coin.