Because it's a substantial amount of effort to upgrade to the "new" tech, and he's showing that the "new" tech is actually worse than the "old" tech of reliable

Because it's a substantial amount of effort to upgrade to the "new" tech, and he's showing that the "new" tech is actually worse than the "old" tech of reliable old jpeg. > Bandwidth is cheap. Labour is not. Just leave your jpegs as-is!