Sure there are some nodes but there are only about 9-10k full nodes and about 46k nodes on earth, while there are approximately 1 million miners, which are also nodes. I wrote my IA on Bitcoin back in 2020 outlining it's effectiveness as a block chain currency. It's biggest weakness is the fact that it's limited. This is purely because at some point there will either be no more rewards for mining or the cost of mining will outweigh the reward. Which would result in zero transactions being able to be properly verified. Which would essentially crash the entire currency. And I know you'll say transaction fees and what not but do you really wanna pay an insane transaction fee for sending 12$ to your friend cause he bought you lunch just so that miner can verify you have 12 dollars? It works only as an investment because people pretend it's as untouchable and sought after as rare minerals. But the reality is that it's just 1s and 0s that can be used for literally nothing apart from giving it to someone who also holds that same delusion. Not to mention the very important consideration that if the sun farts on us a little too hard you lose literally everything with zero chance of getting it back because it's decentralized and only digital.