Would you consider this person to be unethical?

There is this movie called “killer klowns from outerspace” from the 80s. There is a ray gun in the movie that the clowns use called the cotton candy gun. I was looking for one and saw one on spirit Halloween for $27. I then went on ebay and someone is selling it for $80. The description says “a sold out spirit halloween item!”. Well its not sold out. I just bought one from spirit halloween. I thought of messaging this person and calling them out. Even if it was sold out, I think buying it for $27 dollars and then going online and selling it for $80 is messed up. What do you think?