I think 3 BTC for bittrex is not much , Minereum is a very rare coin , idea is genial , and project and dev very well .
Once you have Minereum on bittrex, the project will be immense .
why bittrex if we could get listed on Poloniex, just need more patient and keep open ticket at polo and spread the words about minereum to all community
it will be there soon, Im so sure on it