I also think that Nano has a great potential and is still under evaluated this days. His features (0 fee tx and instant receive if wallet is synced) make it a special coin. It should grow and be at least 1 Nano = 500$+ after some time, in my opinion.
to be able to make it happen bitcoin price should increase again and make FOMO again
when FOMO happens again, people will notice the weakness of bitcoin (expensive fee and slow transaction time) and they will look for bitcoin alternatives
when it happens the Nano marketing team should promote the Nano as an alternative bitcoin
This is likely to happen again,but I hope not to the extent as it was at the end of last year because most of wallets/services now support SeqWit.Of course it will not completely prevent high fees or slower transaction,and as you say people will always search for an alternative coins.
The biggest problem Nano has at the moment is wallets.,Desktop wallet is hard to sync,mobile wallets are still in testing phase and only easy to use is Nano online wallet.But considering how it ended up with Bitgrail,most of users do not like to keep their coins online.Also exchanges have constant problems with deposits/withdraws of Nano-so trading volumes are pretty low.
All this has resulted in very low price-lack of infrastructure does not allow further progress//imagine you have brand new Lamborghini and only a pretty lousy country road to drive,that would not make any sense...