If you believe in MYDX, and you have the means, it does not matter your previous purchase price...as it would be logical to purchase additional 'belief' at a much cheaper price.
If that belief is not strong, then it is logical your have a price ceiling/floor you are willing to exceed...as your belief wanes tremendously below .01
But do not tout what a great buy it is, if you aren't willing to become more vested yourself.