So, I was just about to pull the trigger on the 1070 and lo and behold, the 970 arrives...now I have four choices:
1. 1070 @ $899.
2. 970/7075 combo @ $1298. This one's really stretching my budget, but tempting.
3. 970/B-stock 7100 @ $1474. What the heck it's less than $200 more than #2.
4. 970/7125 combo @ $1598. Beyond my price range, but I put it here for completeness

Thanks guys!