Have you even noticed that your new servers all have 2 NICs on the board?  At least all of them that I’ve seen in the last 3 years have.  A lot of server admin actually use them in a NIC teaming scenario where both NICs are used as one logical device – much the same as Etherchannel on a switch.  This provides some fault tolerance and availability in case of failure, which is good idea in most cases.