Bad news, and good news

The bad news: I managed to lose my DSi somewhere! D: I can't find it anywhere, and it had my favorite game ever in it (Animal Crossing) so for now I can't play any DS games until I find it :( Just my luck too, I've been planning on trading it in so I can buy a 3DS.

The good news: I have money for new Pokemon games! Which should I get? I managed to get $30 (don't judge me, my parents won't let me get a job >.>) and I'm looking to get a game or two. Which are the best for my money? I wasn't really looking into any DS pokemon games, as like I said I don't currently have a DS D: Pokemon games I have: Ruby, Emerald, Blue, and Heart Gold.

I've been thinking of getting Fire Red or Leaf Green, but I'm not sure. Should I get Sapphire? Yellow? Red? Fire Red? Leaf Green? Gold? Silver?

So many choices!

Again, I'm limited to $30, so preferably cheap! I would either be buying these at Gamestop (If I can find one near me that still sells Gameboy games) or on Amazon.

Thanks!

You aren't allowed to get a job? Fuck that noise, just get one.

I honestly don't know which game to tell you to get.
So no suggestion from me! D: