The high price of BTC is obvious and intimidating especially if your a new player in the game and not as seasoned as the pros how do you explain buying and selling or breakdown of denominations to invest in Bitcoin when you can not afford the full thing just yet.
According to Google :
Each bitcoin (1 BTC) can have a fractional part of up to 8 digits so 1 bitcoin can be divided into 100 000 000 units. Each of these bitcoin units (0.00000001 BTC) is called a satoshi. A satoshi is the smallest unit in a bitcoin. This unit is named after Satoshi Nakamoto – the alias of the bitcoin creator.So you can invest in bitcoin according to your capacity and will. There is no restriction or limit for investing into bitcoin.