Why Large Coin Supply in Some Crypto Currencies?
When studying a new crypto coin, it is important for a currency to have a large supply (and not released all at once) so that a small minority of people do not own the majority of the coin.
If the majority of the coins are owned by a small group of people, there could be drastic price fluctuations based on the actions of the few. If one person, who owned 60% of all Verge coins decided to sell all of their Verge coins, the Verge price would plummet. An important factor in a viable long-term currency is keeping a stable price so that users are not afraid of using and accumulating the currency in their day-to-day lives.
A nice side effect of a higher supply means that the potential price of a single Verge coin could more closely align to the price of a single fiat currency (eg. USD or GBP). This would help people not have to calculate to many decimal places (eg. "I'm sending you .002 bitcoin").
In other words, the price is more stable, especially if the supply of coins is released in appropriate amounts over time. Speculators for the short run want a smaller supply. Those invested for the long haul look to the business model and the larger available coins for stability. IOTA is a good example. See the article recently published on IOTA and you will see.
Hope this helps. 
Good point!
I have over heard relatives talking about crypto coin and "bitcoin", to be honest this was my first read and I found it informative. Thanks!
Reasons can vary per coin. For example, with Ripple- any time there is a transaction some XRP is burned. As more transactions and micro transactions occur, a lot of ripple will be lost- thus why they made a ridiculous amount of something like 100 billion.
You had talked about bitcoin and crypto coin in class but I had not heard about it before then, but this helped me to understand it a lot better. Thank you for posting this.
-Ashlee