You're nuts!
Seriously, that may be the best thing for you...on the other hand, 10 years down the road when you want to display something carded and its open, you'll be kicking yourself. You can ALWAYS open your stuff later, but you can NEVER reseal your stuff - just remember that. Personally, I open one of everything and keep a sealed version of everything, but that's a freaking expensive way to go about this, AND you have even less display space than if you did just one or the other, so who am I to give advice. Good luck in your decision.