In my opinion this is a failed experiment. They should not be regarded as reliable assets. Their market capitalization compared to bitcoin is almost zero. They don't even have daily trading volumes. In addition, bitcoin is used in many areas of the Internet. The team is constantly working to improve it, which increases its importance in the world. Most likely on these expensive coins commands do not work. They were abandoned. Perhaps they were created at the peak of bitcoin's popularity as another speculative asset.
Exactly, bitcoin already have real usage and being first known around the industry the market value was been created due to its emerging demands,
unlike those coins who got and artificial value coming from team or community who self benefited from their own, bitcoin was recognized by more
users and businesses than other alternative coins who coexist with this cryptocurrency,.