When using a public blockchain, especially for enterprise use, it is imperative to implement a transaction fee (However small it is). The reason is that if transactions are truly free, the network will be spammed with useless Tx.
However, on a deeper level, the Tx costs are calculated in GAS. GAS is not a token, but an arbitrary unit to measure Tx costs. To send VET from one wallet to another, one needs to spend 21000 GAS.
This setup is applicable for direct interactions with the blockchain, such as wallet to wallet transfers. However, most clients of Vechain use #ToolChain to perform Txns.
Confusing? let's look at a simple analogy
VTHO is the crude oil generated from the well.
GAS is refined gasoline that you pour into the car.
TCC are vouchers that you purchase from the oil company that are redeemed against fuel
This means, ARKET needs 100 VTHO/ year.
Let's assume 1TCC = 1 VTHO. Arket pays Vechain for 100 TCC.
Now imagine a global turmoil & crude (VTHO) prices shoot up through the roof, lets say, 3x,with no signs of a downward correction
On VechainThor however, there exists an elegant solution for this problem
Imagine this as finding a more efficient way to refine crude to get more refined gasoline out of each barrel
This means the clients burn exactly the same amount of fuel (GAS) as planned in their lease, but from 1/3rd the amount of crude(VTHO) as before. Since Crude now costs 3x as before,
Now imagine a scenario where suddenly, 10x more customers sign up for new leases and there simply isn't enough crude out there to be refined into fuel,no matter how efficient the refining process is
In this scenario,the vote would be to change it to 0.00432VTHO/VET
Now,there's 10x more crude available to cater to the additional customers who have signed new leases,but since fuel prices haven't changed,noone is paying more. We just have more cars on the road