Bitcoin is not a valuable asset because the total max supply is just 21 million, that's so wrong, there are alternate digital currencies in this space with 10 million and 5 million max supply and yet they can't do what Bitcoin did, it's not about max supply.
People don't get how big the decentralised in nature of Bitcoin really is, the only thing that comes this close to me is the battle with inflation, it just seem to be the best thing to tackle inflation and I bet that's why every institution want some Bitcoin now, they slept on it for years and now they've woken up.
Now that people are just realising how Big Bitcoin can be, they are moving so fast to buy everything that they can, to me Bitcoin is also a good store of value, I will rather have a lot of money in Bitcoin and have small amount of Fiat in my bank account, mainly for food and bills.
That's right, supply is an important factor in determining a asset's value, but it is not the key factor. Use cases, utility, practical applications...these are the top factors that determine whether an asset is good or not.
Creating coins with a finite supply is not that difficult and there are many altcoins that do this but none are as decentralized as bitcoin. A coin with no utility, poor security...low supply is useless. We don't need to make things complicated, decentralization is what makes the difference and makes bitcoin the best.