So I'm in a bit of a dilemma. I ordered my copy of Pokemon X to come to my college this weekend. Problem is, the post-office won't be open until Wednesday (Fucking Columbus Day). What I'm thinking of doing is:

>Go to Target/Gamestop today and grab X
>Play it over the weekend
>Wait until wednesday and grab the copy I get in the mail
>Return that copy to Gamestop/Target and get my money back

Is there any flaw in this plan?