Many project devs will try to revive many trends, you will see NFT's getting some attention too, every trend revives after a while, but there won't be any investment into it to make it sustainable and long term. AI is a "big word", and everyone uses it, but then you look at what AI stands for in their project and it's the most basic, open source, free version that you and I can download and use too.

So what makes them so good? Nothing. This is why most of the projects end up being not invested and then die after just a week or two. There is no need to invest into any of this and the better approach would be just focusing on how to make money later on. If you can do that, then you are going to end up being a lot richer.