First, we have to remember that Waves price in June 2016 was $ 0.7 per unit, and it is now above $5 per unit. Which means that this increment was of +600% in one year. Waves is a "long term investment" cryptocurrency.
Waves will enable people to make custom tokens and create their own cryptocurrencies (without coding) and then launch their own ICO to fund their projects. This is great and very interesting.
For these reasons, I think waves will be a big tradable value in the future.