I think in the end the price of coins will be driven by their utility. If Bitcoin is able to fix their slow transaction speeds and decrease their costs, it will have greater utility and more people will buy and use it. If they do nothing to fix their slow transaction times and costs, then it will continue to go downward to prices such as what you listed over time. The best coins in the end will win, in my opinion. If bitcoin wasn't the first dominant coin, it would not be at the top. In fact, now bitcoin is used mostly as a store of value instead of a currency due to the slow speed and high costs. However, the lightning network could fix this if implemented.