I pretty much buy all my games online from Amazon now.
1) Because (as with all products) their stock is so much bigger (if it's even slightly obscure or old you know they're not going to have it in a store).
2) I got annoyed buying games in a store when they take the scratched up, poor condition box from the shelf that you've handed them and just stick the disc and manual in it. I may as well have bought it second-hand (and that's not to mention the dreaded price-sticker residue and tears in the old cardboard box days). When you buy from Amazon you know it will come to you brand new, factory sealed, in 100% mint condition.







