Even as the existing payments system in developed countries becomes ever more convenient and secure, the space is still littered with middle parties taking a small amount from each transaction. These players include payment processors, payment networks, issuing banks, and acquiring banks. The dream of bitcoin and other monetary systems based on blockchain technology is for payers to be free of these inherent costs of exchanging currency for goods.
Miners take financial risks on hardware with the reasonable expectation that they will be able to earn a return. If one or the other chain is better equipped to service that result, then that will become the preferred chain of miners, and if they are within a few dozen dollars of each other in unit price, this preference can fluctuate algorithmically in ways that can have a dramatically negative effect on everyday users as difficulties rise and fall and make block times irregular.
People who would like to get some Bitcoin always look for the most convenient ways to accomplish it. And among the numerous ways to buy Bitcoin instantly, purchase with any kind of payment card is the most widely spread option. At CEX.IO, you can literally use any card issues in any currency. The system will automatically convert your currency into the one supported by the platform. So, you can be sure that your card data are secure.