You've got some real nice cards there Great White but I hope you've sampled some sets other than Impeccable - very expensive and boxes are a massive gamble.
Since Panini got exclusivity they've flooded the market with expensive and sometimes pretty ugly releases. The one or two pack per box releases are ridiculously poor value (unless you jag a 1/1 or a gun player and good luck with that) so you'd be better served buying individual cards on ebay or COMC. Better for one team or player PC's.
I love busting boxes as well so I go for quantity sets like Contenders, Certified, Elite, Prizm, Rookies & Stars for example.
But these prices are getting a bit crazy as well, the prices have gone up coz there's no competition. Contenders this year is likely to start at $US200 (last few years around $US130), Prizm was $150 and used to start around $80. They'll tell you it's a great rookie class (which it is) but there's been a huge increase no matter the draft class.
Anyway, good luck with your collecting. That next big hit is out there for some lucky punter.