Just a while ago it seemed like gaming notebooks were only being manufactured by a handful of specialist resellers and were built to spec , not mass produced . The sales were by no means really great but they did produce more mark up 's on each unit than others . I ' m pretty sure everybody would have liked to have had one however could not seriously justify it .

Generate a question about the above context.
Why were game books hard to come by in years past ?
Choose from:
- Manufacturers could n't justify printing or selling any ..
- They were not mass produced ..
- None of the above choices ..
- They sold too quickly ..