If you’re interested in purchasing cryptocurrency, you buy it simply the same way you buy anything else. It’s the same as if you want to buy a computer, or food. You need to get it from somebody that will sell it to you: simple as that. Cryptocurrency is the same. You need to find somebody who is willing to sell it to you, and come to an agreement on its worth. Cryptocurrency is different than what people are used to in that its worth isn’t always valued with money; sometimes it can be traded for a service, or a promise of a service in the future. The value of the currency at that given time is wherever the buyer and the seller agree to meet.
There are different cryptocurrencies because of the different services that they provide. You can compare different cryptocurrencies with their different technologies and services that they have given. Bitcoin, for example, has given a service of a very secure, decentralized transaction system. Some other technologies will say that they are giving a service of a competing platform where you can use “actual” currency. It is simply whatever fits your utilities needs. Different utilities need fit different issues in the same way that, say, gold has some qualities which make it more enticing to use, but dollars have difference qualities that make it more pragmatic at times. You use dollars to pay taxes to the government, for example, because the certain utility benefits make it easier to make transactions over using gold.
The value of the token in every country depends on the market. In Korea, they have some restrictions in moving fiat currency out of the country, so the price of the Bitcoin is a lot higher than it is in other countries. It all depends on the market for buying and selling. Oftentimes arbitrageurs will buy from markets that are slower, and sell to one that is higher to stabilize the prices. However, the geopolitical restrictions make this more difficult.
One of the biggest challenges of cryptocurrency is that there is currently a very big scalability issue. It’s very different to scale whenever there is too much pressure on the network, leading to higher transaction fees and lower speeds. If this continues, it will not be sustainable as a currency, but rather only an asset where people can invest in it and store it somewhere, like gold, but it is not used everyday. If this happens, cryptocurrency wouldn’t be serving its potential or desired effect of being a quick and inexpensive currency, like everything else is nowadays. Right now, we are still early in this technology, and this challenge needs to be addressed. Just like the Internet was 10 or 20 years ago, it is still very clunky and limited, with not many things that you can do. With time, the hope is that it will explode even more than it has already, and people will be able to use a decentralized system to work as fast and efficient as the computer.