To be honest there's just not that many contemporary unopened soccer products out there worth opening so I mainly stick to buying only the singles I want. However I do sometimes pick up a box from an older collection I'm interested in, especially if the price is right as was the case with my recently busted 36 pack box of 1994 Upper Deck Wold Cup.
I had yet to pick up this preview edition World Cup set so this was a great chance to add it to my WC sets collection. Here's the breakdown of the "hits" from my box break as pictured in the scan below. I got 4 different "Bora Selects" inserts which the back of the pack states that the odds of finding these is 1:12 packs. Next I got 2 SP "Honorary Captain" inserts (1:24 odds) including Michael Jordan. Lastly I got 6 (3 not pictured) "World Cup Super Star Holograms" inserts. I have heard that these hologram cards were originally meant to be stickers and it makes sense because they are much thinner than the rest of the cards and very flimsy, still nice looking cards though plus I absolutely smashed the odds on these as they're stated odds are only 1:18 buit I got 6 in 36 packs!
As a result of this fun and dirt cheap break I now have the complete base set for my PC and a spare one to trade, as well as the entire Hologram insert set. I still need plenty of inserts especially the Bora and SSP Honorary Captains so if anyone out there has 'em I'd be interested in trading for them.