Interesting Article it inspired me to do my own digging . I found some information that suggests the output of GAS that NEO produces is way less than you have calculated. That's why I conclude that GAS is dramatically undervalued. I summed it up here ->
https://steemit.com/cryptocurrency/@chris83/why-gas-antcoins-are-dramatically-undervalued

I quoted this article so people know how to buy GAS. Big THX to you