And what I mean by thematically, is that Owen is the rock, the unchanging man, the one afraid to go out and explore. Owen is everything that Luke (and Anakin) are not. He's afraid, he's not inquisitive, he doesn't rock the boat, etc. This is why I don't agree with ideas taht Owen would've/might have been a soldier or even a failed Jedi. These characters are archetypes. Owen does nothing. He stays home, he does what is required of him, he's frightened of the world outside of his limited sphere.
So, IMHO, Owen, along with his family before him, lived on Tatooine, he did what his father did before him, and his father before him, etc., much like my own family. I'm one of the few to break out and NOT become a farmer (which is why it was so easy for me to identify with Luke). In that case, Owen was doing what he has always done, and he believes that is what Anakin should be doing, and believes that Luke should be doing what he does. It's all about diametrics and archetypes, and in Owen's case, having Anakin going out, becoming a Jedi, attempting to achieve his dreams---and then become something twisted and corrupt only verifies and validates Owen's stance. You go out, bad things happen to you.
This is why Luke mustn't dream, mustn't aspire. He must be kept down---for his own good.
Word. Big fat underline.
Also, I like the idea of Tatooine appearing in the prequels, but for another reason entirely. In the original films, it serves as the prime example of that "used future" asthetic people always talk about. It's got strange and advanced technology, but it's all worn and shabby and poor and corrupt. Very post-apocalyptic. ...Or maybe just post Clone War...
What I'm getting at is that the planet wasn't always like the original trilogy depicts it. Not that it was ever a metropolis or anything - just a farming community - but a prosperous and civil farming community. No Jabba. No shady dive-bars. A simple but charming place to live - like an Arabian bazaar in so many fairy-tales. ...And then when we revisit the planet in ANH, we see what 20 years of Empirical rule have done to the place. Driven into poverty by the callous and greedy government (much like the decline of Russia under Soviet rule), overrun by thieves and scavengers, and ruled by viscious crime lords who have set up shop in a place where law enforcement is just as corrupt as they are, Tatooine is the before and after picture that shows what the common citizen has to lose.
Of course, how and where you use that is totally up in the air.