21.   But some computer enthusiasts expressed dismay that they would now have to buy a copy of the system for each PC that they chose to upgrade.

22.   But what happens if more than one book is ordered, or a bookseller buys copies to resell here?

23.   Buy a copy.

24.   Buy two copies, because someone is sure to snitch one.

25.   Children and adults started buying multiple copies, particularly of special editions, betting that they might one day be worth a mint.

26.   Consumers have become accustomed to buying one copy of Windows and installing it on the two or three computers they own.

27.   Customers buy a copy of Linux from the likes of Red Hat for reasons of convenience, technical support, and the attraction to added bells and whistles.

28.   Ed Kao of South Pasadena was so excited about Virtual Game Station he bought two copies, one for a friend.

29.   Even the businessmen who seem most threatened by the piracy occasionally buy bootleg copies.

30.   Even if you already pay for a subscription you might want to dash over to the bookstore and buy a copy with the map.