Well since you already are invested than that changes the conversation more from an ethical one to a strategic one.
Personally, I think its possible to someday hit or go above 20 usd per coin briefly, but its also possible that the high of 16 is the highest you will ever see.
Its really a gamble you must take right now.
On one hand homero just announce paybase will open soon, on another hand there is still KYC, he was dropping hints of possible XPY to BTC conversions(very vague without discussing limits) earlier so there may be a partial sell off. The way GAW has handled themselves though and all the last minute changes makes me concerned there will be a few more surprises which could delay everything.
Where is the ethics involved? That makes less than zero sense. You aren't trying to scam people to get them to buy in. If you (me) believe in the coin and are invested in it, how is that unethical? You and I might disagree on the legitimacy of the coin...but that doesn't mean I am unethical for trading in it and believing in it. Well, maybe in this forum it does. LOL