At least you have the brains to purchase the full box. Many times I have purchased 10 packs, got zilch and then agonized for the rest of the day over what may or may not have been left in the box. Now I either purchase 3 packs max or it's the full box, and even then I should be grabbing them from Al's Card shop at $95 rather than the $107.65 the servo pings you.
This is addictive shit. Since I've started buying cards again I've been fantasizing about a big win at the track so I can purchase cases of Footy Stars/Future Force...
Sick!