I would hold part of it, but I should also invest. There are currently, in the cryptocurrency market, projects related to blockchain as a service and blockchain applications, with potential to grow in the long-term and that I think worth some investment.
Yes investing them in some promising ICO can make our day, but we need to be careful before investing in it as most of the projects are turning out to be a scam in long run where only owners are making profits.
I think you have to be careful with coin any new type of coin, I think you do not know what he was thinking by the dev or the owner of the coin, maybe he thought to profit on a pump alone, so I think you have to be careful to invest or buy a coin, because it might that coin to be a scam