Buy more as you can, because this is the best opportunity to invest in Nano coin and maybe you will not find this opportunity again. I am sure the price will not be lower than $2 because the technology of this project.
There is even better opportunity to invest in NANO, just check Jun 29, 2018 and you will see price was only 2.14$ and now is 2.93$. Like most altcoins Nano is shows recovery, but it is far away from best days. If
BTC price is continue to rise there is no doubt NANO will follow, but if
BTC starts to fall again I am sure all altcoins will be in red again. Things work that way and there is no technology at this moment which can change that, NANO can reach 30$ or more probably when
BTC reach 20 000$ again.