How much is a box of Bowman chrome football 2008?

I want to finish a set. Locally, it’s $69/box plus tax (~$73.) I see on ebay, 10 box cases go for about ~$50 per box, but I figure I only need about 4-5 boxes to make the set. (Took 4 boxes to make the 2009 set.)

Any way I can get them for less than $50/box?