the trading volume of DSR is miserable. The number of stock exchanges is decreased to 1. So, trading price of DSR doesn't reflect the true cost. I'm sure even 1$ is too high.
New exchange coming soon, Mercatox is undergoing maintenance. But if you think its overpriced, don't buy. Simple, its up to you

But remember not to look back, because it'll probably be $3 or $5 when it hits the new exchange.