Well you should've mentioned that you're attaching a bunch of cards :lol:
Armour does help but then the motherboard you were considering itself isn't adequate for your needs so it doesn't make sense to get it.
PS. The LGA1150 platform is not the best for 3-way or 4-way SLI. That is because of only 20 true PCIe lanes available from the CPU, Haswell-E (LGA 2011-v3) is much better, performance wise.