training and reconfiguration - and more pointedly B/OSS changes - are generally more expensive (opex) than upgrading equipment (capex) I personally believe the

training and reconfiguration - and more pointedly B/OSS changes - are generally more expensive (opex) than upgrading equipment (capex) I personally believe the biggest driver for IPv6 adoption will be Apple requiring support in iOS apps. Right now, IPv4 space is still comparatively "cheap"