Lets break down some numbers, token names, supply and prices
The genesis supply of CYB is 1 PCYB or 1,000,000,000,000,000 CYB. The current price of 1 GCYB (1,000,000,000 CYB) stands at 1.345 ATOMs (this price grows as more donations flow in, as each next CYB is more expensive as the previous one). CYB, currently, does not have an finite supply. Its inflation is decided upon by validators.
The current progress of the price and the donation curse can be seen here: https://cyber.page/gol/takeoff/progress
Why do we use MCYB / GCYB / PCYB ? Think of this as with IOTA. We work with large numbers, hence this makes counting easier.
At the current price of ~ 1.345 ATOM / 1 GCYB (correct for 04/06/20, morning CEST time) this means that the valuation of CYB is 1 345 871.46 or ~ 4 mil USD. The total cap at these prices is roughly 11 mil USD (dependent on ATOM / USD price). The progress can be tracked here: https://cyber.page/brain/cybernomics
(GOL and EUL are testnet tokens , lets ignore them for a second)
For 10,000 ATOM the Cosmos hub can get roughly up to ~0.75 % of the supply of CYB which is somewhere around ~ 7500 GCYB (very rough and rounded up calculation!)
In other words for 10,000 ATOM, which are ~ 0.004 % of the supply the comm pool can get ~ 0.75 % of CYB supply. Or, based on the max total valuation of 11 million USD at current prices, get a very large discount for ~30k USD (based on todays USD ATOM valuation).
The second important token of Cyber is THC. THC is an ERC20 token and it separates money from the state. CYB is used to stake, transact, search, rank, bandwidth, etc. It is the main utility token of the protocol without it, cyber cant be used. CYB has no transnational fees. It uses bandwidth (an energy model), which regenrates over time and acts like spam protection and limitation, but without the cost.
THC, on the other hand, will be used for 2 things. One, if its vested during the auction (which is the second stage of the funding that attracts ETH to cyber Foundation, the community DAO), will give people the ability to claim CYB on 1-1 basis. And 2 - provide people the access to be in charge of the donated ETH. This DAO with its own ETH will act as a non jurisdiction based DAO without CEO’s, etc.
GOL and EUL tokens are just the testing equivalent of THC and CYB.
The breakdown of the allocation of CYB and THC can be seen here: https://github.com/cybercongress/congress/blob/master/ecosystem/Cyber%20Homestead%20doc.md#cyb-and-thc