Could you get by with second hand physical machines? Something like a HP DL360 G7 has 4 ethernet ports on a single machine, can be bought for $200 or so and ha

Could you get by with second hand physical machines? Something like a HP DL360 G7 has 4 ethernet ports on a single machine, can be bought for $200 or so and has good Linux support. Not sure if the nics count as cots though.