That’s a straight answer, and that would answer in general. Yes, with the total cost of a single bitcoin, it’s difficult to accumulate even a single of it, that’s why it’s not surprising that majority of us do not have bitcoin at the present. Except for those who only come here to buy and hold, without facing such difficulties in their finances at some point that would push to sell early their coins.
Bitcoin is expensive and due to its expensive nature most of the people are not able to buy one Bitcoin so they are buying it in pieces. While there are also lots of people who cannot afford it to buy in a small amount because their financial status does not allow them to do so.
Early selling in case of Bitcoin is not a good idea and if a person wants to buy Bitcoin then before buying he should know that he will not sell it after a short time because Bitcoin growth needs time. If someone sells it early then he will face loss and Bitcoin loss is a big loss therefore try to know everything before doing anything expensive.