You Strengthen the Network You can Vote on a fork/change Privacy when you transact through your own node Help Decentralise Check the Hash rate Check Transactions/fees on the Mempool Open Lighting Channels to provide liquidity for the Lightning network, Run a BTCPay server Coinjoin your Coins Even View Ordinals if that's your thing. Plus more....

The reward is that you don't have to trust anybody, as you can verify.

Good karma. You're doing something to help humanity and that karma will be repaid