I don't know much but running a node will require some essentials like a computer, running it all the times incur electricity costs and you also have to give some time. The benefits of all these aren't too so big as the costs are. Unless you're getting much in fees what's the use of them?
Running your own Bitcoin node does enhance your wallet security. You can process all your bitcoin transactions via your node rather than using one provided by the wallet provider. I have cold storage via a Linux OS on a USB stick which has never been online but it still relies upon the wallet providers node. When I get my own node I can connect my wallet via that= enhanced security for cold and hot wallets. Agree there is some cost on electric to run computer but probably only a few dollars a year or in my case now ~ free solar.
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