Altcoins still have a good role to play in crypto ecosystem, even though the major issue on ground now is that most team members behind  altcoin projects are just in for the money and once they hit their target, they move on to launch a new project rendering the former useless. Well, we traders still make profit from altcoin trading especially for short to mid term. I'm hoping to see real world adoption for some altcoins in future, most of their applications are merely theoretical.