You should always try and buy at the bid. On a stock like this you save 5% or more.
A 15k buy is not a huge buy. It's $2640.
I only ever buy at the ask if a stock is moving and I want filled in a hurry.
It'll go up when there's news. And the MMs will move it fast so they make the money and retail doesn't. Till then I'm adding under .18 and waiting for the eventual....