The problem with this market is that there are many different companies all doing the same thing. With most products this is called market saturation, so i think if it does rise at all you would be best to sell. This is not something you want to hold for the long term because the risks are just too high. A competitor designs a better product and overnight you could see the price crumble. Suncontract seems to be the same but with a wider market. I'm staying away from both right now anyhow.
I do not quite understand why the Power Ledger is bad in the long term perspective? This is a good project, it has grown so well in price. After this project received government support, it flew to the moon. You are talking about competition. OK. But the competitors have not achieved anything yet, they did not enlist the support, they did not legalize their business.
Power Ledger is one of the good investments for the future.