Yes but where I live there aren't store like GameStop :/ Although I think I can find a similar shop... Or I buy it on the web ! :D
I've got a lot of Leaf fanart on my computer too xD But unfortunately she's not a character very drawn, and sometimes it's difficult to find some fanarts which are acceptable! I love its former look, when she was called "Blue" (or I believe "Green" in the manga), even if she was more simple she was awesome nevertheless
I actually have two copies of the game, so I can keep one file while I start over in another. You might be able to get used cartridges for cheap if you have a store nearby like GameStop that sells used games.
I estimate I have about a gigabyte worth of Leaf fanart on my computer, and I've had several Leaf themes in the past. I'm just *slightly* obsessed, lol
The same ! However I haven't replayed my LG version because I was too far in the game and I hadn't the courage to erase all my adventure .. But Leaf Green is also the game I've played the most in my life, even keeping just one "adventure" :3 I can't get enough of Leaf !