Sorry to hear, I completely understand you
I bought:
5x Lightning 7970 (3 are dead)
2x Z77A-GD65 (one is locked to x16 multi)
X79A-GD45 (the only available) but it appeared that my 3930K C1 retail (5450 MHz) is half dead and doesn't work on MSI boards, so I RMA'ed it
3960X C2 (cause my 3930K died) which will be on Monday
3x i7 3770K, but it was not bad move, I found 6.7 chip