I feel your concern. You are not alone. In the short term IMO pps will be volatile and I wish I have more cash to buy more but if the monthly subscription option becomes available and official launch of ultraflix commences, the patient will be greatly rewarded. IMO when billion dollar UHD TV companies want ultraflix on their TVs then they might have seen the pre-launch version of ultraflix which average consumers have not yet. Remember that Batman Dark knight rises. I'm expecting such caliber movies when the official launch happens and pps will surge with fury to its true valuation. All IMO.
Just remember any post that says to hang in there and you will be greatly rewarded has been repeated many many times for 2 years...if it takes a quick run if I was you I would get out and be thankful...