You don't need to buy a copy for each system.
I will be first in line to buy a copy if they do.
I would have had to buy 2 copies alone for me and my wife to be able to play.
I wouldn't buy two copies of the paper for the house.
If you really want people to read a book, buy a copy and give it to them.
Even today it is possible to buy an original copy of the work.
On the other hand, many teams also said they wanted to buy a copy of the game!
Should I send it back and buy my own copy?
Her first book was just published, and you should buy four copies.
I should have bought two copies, he thought to himself.