Just a small note: we won't ever hit a point where a miner will get zero money from mining a block, because people sending transactions pay a fee to the miner to have their transaction prioritied over people who pay a smaller fee, and the number of transactions per time unit is limited (and pretty small), and can't be easily changed radically (as in by orders of magnitude).

I think you're technically right, as the "miner reward" (as in the coins the miner cand give itself as a reward for finding a block) goes to 0, and you probably know that already, but I wanted to clarify for people who didn't yet know that.

Otherwise, I agree.