It just that new coin has something more better to offer than the old coin. I believe that getting in top 200 demands great hardwork from the team. The thing here is not about how old a coin is doing, but how the team work so hard to gain the trust of a community to their project. Those old coin might be still profitable but it just that the new ones are more to gain profit. I'm seeing new project now that might bring big hut in the market since the service and product they give is worth to invest with. Some project that are booming now are like realstate project and new better technology wallet like HODLER wallet that really has the potential since it has unique feature.