I am not a financial person. This is speculation on my part. Please correct me where applicable. It seems to me the operative difference between crypto assets

I am not a financial person. This is speculation on my part. Please correct me where applicable. It seems to me the operative difference between crypto assets and other collectibles is the market-making aspects and the original promises. Full-stop, the vast majority of NFTs and crypto assets are being hyped as investments. This covers the original promise. The market-making aspect is in how these collectibles accrue value. Most collectibles rely on a secondary market, whereas crypto assets don't seem to have an appreciable difference in secondary vs primary markets. This means the same asset is meant to accrue value in the venue it is originally purchased, among the same conceptual group of purchasers. I also wouldn't be surprised to find out that the utter uselessness of most crypto assets plays into their status as securities (or not).