Forum:Buying 5D Structures

I am interested in buying several of the 5D structure decks. However, I'm not able to obtain more than a few booster packs for I don't live remotely close to anywhere that sells yu-gi-oh cards. I heard that you can make a decent deck by buying the several copies of the same deck, is that true?

Also, I already have pretty good beat down deck, but I'm interesting in buying something different in terms of game play. Any suggestions would be greatly appreciated.