I think the price by the end of 2018 will fall somewhere between $15-100.  I know that is a wide range.  If I had to realistically pick a number, I would say $50, based on what its market cap would be and what it's market cap should be compared to other quality privacy coins.  Below are my supporting reasons:

*The quality/value of the coin is already pretty apparent to the more technically-inclined. 
*As others observed, the wallet is among the best I've used.
*They will be rebuilding their website - a fancier site will help lend more legitimacy for the less technical.
*They have major upgrades planned during the year.
*The community is beginning to try and promote the coin more organically.

I bought in, have already seen some really good growth, and think there will be more coming.