
- God purchased His 'geting out of Egypt kit' at Costco, and didn't want to waste it.
Nah
- The Egyptians made the Jews suffer so much over the years, they deserved a little payback.
OK, but why the creative, nature altering plagues? Why not just make them eat sardines or something?
- God wanted to show his complete control over the world. Weather, livestock, health, economy, wind, wild beasts. Once He did that, nobody can question his abilities. (Ramban)
Now we're talking! Is there something more?
- God got a real laugh out of frogs and it all sort of flowed from there.
Are you feeling okay, Locker?
- It was actually being nice to the Egyptians!
Huh?
- No really. They did bad stuff. Had God just said, "Game over, exit Jews," they would not have had the chance to improve. This way, God gave them chance after chance- "Hellloooo, wake up Pharaoh. You're evil. Please change your ways or else I'll beat you up."
- It's kinda like a parent who finds out their kid did something really damaging. A lazy parent just cleans up the mess and doesn't mention it to the child. A proactive parent takes the time to explain to the child where they went wrong, and provides consequences if they refuse to improve.
- Although the Egyptians may not have realized it at the time, the plagues were (at least partially) for their benefit! Ironic. (Seforno).