Backer digital reward tier: 2nd copy of the game not needed

Is there any chance the 2nd copy of the game in the $80+ digital tiers could be replaced by something different? So far I've pledged $90: for the beta key, the digital strategy guide, the obsidian order and the $50 reward tier. I'd really like to add the expansion which would get me to the $110 tier but then I'd end up without most of it's rewards. I have no need for a 2nd copy of the game, nobody I know likes gaming for some weird reason