Due to a high risk of a very low return.
I've canceled my plans to post a clearance 2015-16 Upper Deck Series 1 and Series 2 Hockey blaster box break, due to a flooded market.
The overall market value for those series plummeted soon after Upper Deck released those series on e-Pack, a digital trading card service that allows you to transfer certain cards to COMC for sale.
To put things into perspective, there's currently 78 UD Game Jersey GJ-JQ Jonathan Quick cards for sale, with the cheapest copy listed for $1.23.
Instead of purchasing a clearance blaster box for each of those series for about $26 total, I purchased every Rookie Materials, UD Canvas, UD Portraits, and UD Game Jersey card that I wanted from those series for less than $12...