Gas was a kind of dividend paid out to the NEO holders. Gas is used as fees for the transaction for NEO and ETH. The holders of NEO got a certain amount of gas only for holding the NEO. GAS is an asset paring with NEO.
So if you were to hold 1000 NEO, you'd earn 0.3411 GAS per day. That makes 2.3880 GAS per week, 10.6 GAS per month and 124.5 GAS per year. Accumulating to 6.22% of the dividend. Current price of GAS is $10.69. So in a year, you would earn $1,295.9 in a year for holding 1000 NEO. Higher the holding, the better it get. GAS also has a limited supply of 100,000,000 GAS and the current circulating supply of 8,335,784 GAS. Till day, there are 10,800,672 GAS created. And it's market cap is $88,706,630.
You can then decide to accumulate much of the gas for some months or a year and i believe before the end of a year, it value would have increased again. This is more or less like staking. Stake your Neo, to get more Gas.
Great! But 1000 NEO is the big money! So It is difficult to get 1000 NEO at this time
Yeah indeed, currently its hard to hold 1000 NEO as the price of NEO has been increased considerable over past few months. It would have been good time to accumulate 1000 NEO in 2017 during march, when the price of one NEO coin was around 0.1 dollars.
I still think that NEO is not even close to its ultimate potential yet. There is still a long way to go. I personally think that by the end of this year 2018 NEO will be 500+$ and is likely to grow up to top 5 coins in coin market cap.