I found it shocking that more than half of a new coin release would be sold already when prospective customers have no idea what the coin will look like and the denomination was still being voted on to the best of my knowledge. Your coins/series in the past few months have been released extremely quick from your side. It makes me think that if I miss this one, I will hopefully have a shot at the next coin quite soon if it's properly announced that private sales are starting.
To eze's point, with the Kialara private sales they were handled in a professional manner as all previous buyers received an email with a time-frame for the private sales before the items went public. I would recommend following that model and if you need more information about how Kialara handled the announcement feel free to reach out to myself or eze and I'm sure we would be able to share the announcement email contents.
I have great respect for your coins so far but feel your marketing/customer interaction could use some fine tuning and there is always room for growth. As stated in my PM from yesterday morning, if I change my mind I will let you know but I was quite disappointed to feel left out of the private sale announcement as a supporter of your first 2 series. Not that I really need #16 from the new coin design, but I felt a fair chance would have been optimal and I have been in touch with the user who you mentioned reserved #16 and we may work something out.
Edit: I removed a statement from my post that could be misconstrued.