Some people always think bitcoin is expensive but it is not. For instance if 1 bitcoin is = $10,000 we will say it is too expensive and when we look at the price in next two years it can be double($20,000-$30,000) and we realize that bitcoin at $10,000 was very cheap and something very affordable. The future will always make us understand that bitcoin is not expensive, we only miss expensive opportunities that we won't be able to get back.
Bitcoin is not expensive at all, when its price was very low, many people could not invest because they thought it was expensive. And when that Bitcoin increased several times after a few years, many people thought that Bitcoin was cheap but it has become valuable in the future. And since the market is very high at present, if we invest from here, we can get a lot of profit in the future. Whenever we do not buy Bitcoin because we think it is expensive, we will have to regret it after a few years, Bitcoin is in such a position that it will not be in this position in the future. In that case, if we keep investing, we will not have to regret it in the future, that is why we should not refrain from buying Bitcoin because we think it is expensive, but rather invest in Bitcoin for the future.