2. Take it or leave it, new good projects will bring better ROI than many old altcoins, feels like we've seem how far old altcoins can go already, now its new altcoins time.
Your assumption is not entirely true. There are a huge number of, old, altcoins that are more promising than new ones. Undoubtedly, there are some very interesting altcoins among new altcoins. But to exclude old altcoins when investing is not quite the right decision.