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.
I have not come across of people who says that bitcoin is expensive, bitcoin is the kind of currency that I know that is appreciative in value, it depends when you know Bitcoin and when you invest in bitcoin that will make you to feel that bitcoin is expensive, I believe that people who purchased bitcoin when the price was between seventy thousand years back will not say bitcoin is expensive, instead they will recommend bitcoin as a valuable asset.