10000 dollars
you can buy a pokewalker by buying the game Pokemon heartgold and soulsilver game pack.
A Pokemon booster pack is a Pokemon card packet where you get ten cards of that series.
A Pokemon booster pack is a pack of 10 Pokemon cards that you can buy at walmart target and some other places.
You can find them in Wal-Mart and places like that, they come in these booster packs that have ten cards in them. Make sure it's a HeartGold SoulSilver pack.
$4.99 for one booster pack
open it
ebay.com
Every Booster Pack contains its own rare Pokemon Cards that are original to the Booster Pack, so every Booster Pack contains rare cards. *edit* If you're lucky, your reverse holo (or what some people call "shiny") card might also be a rare, so you can get one or two rares in one pack.
It is said to have 11 cards in a single booster pack of Pokemon cards.
You can find Latios on Pokemon Emerald, Ruby, and SoulSilver.
You buy a "Black & White" booster pack containing 10 cards wherever you normally buy Pokemon cards. the pack will contain a code worth 1 Booster Credit. hope this helps.
You can get it in Pokemon HeatGold and SoulSilver Version in the Lake of Rage.