With all of the hype surrounding "De-Fi" and NFTs, it looks like old coins like Peercoin, Primecoin, and Quark have been left in the dust. This is sad, considering that the aforementioned coins have a proven track record of stability and reliability. New coins are usually less secure than old ones. Despite the low interest/demand for old coins, they're still actively traded on the market.
I'm wondering whenever it's worth buying and holding old coins for the long term. Primecoin is one of its kind with a PoW algorithm that contributes towards the discovery of prime numbers. It's a pity other crypto projects haven't copied its model. Your input will be greatly appreciated. Thank you.

Lately, it has been the rise of old coins and Axie is one of those that has been very successful so far. There is nothing wrong or stupid about buying old coins as long as it can still become valuable over time. When it comes to Axie, the price or the value of it has been increasing a lot lately considering the sudden massive growth of the players. This might open up the chance for other NFT's to arise as long as their ways would be like Axie wherein legitimacy is guaranteed and you would really make profit as time passes by. Who knows what other NFT's will be successful in the future so watch out so you can benefit from it always.