One example, if I bought 1k ARN, currently that quantity is equivalent to 5.000 USD?
Right. But the estimate of your tokens is as much as it costs on the exchanges. At the moment ARN costs 4,5$ on Binance. I'm sure the price can rise at least to 10$ in a couple of months.
Yes, the price changes. I don't plan to sell my tokens, I will keep them.