Non-violence is the greatest Dharma; So too is all righteous violence.
Hackers never learns but always wins!
Honesty is the best policy.
As far as my two sons are concerned there is a gap of three years, each of them are purchasing new books and giving to others next year free of cost. From intermediate on wards the books are kept in the house for refernec. Now I have a very good collection of books in my library.
Some people keep them for reference purposes and they are sometimes very handy because you know what you will get where. The school books are full of information and knowledge. Specially the books on social sciences, geography and general science are very useful and you can immediately consult them in case of some doubt or confusion.
If space is not a compelling constraint it is a good idea to keep them in your library.
Knowledge is power.
After reading these books i forget my problem and energies with new idea to do something nice in the filed of kids education.
Due to frequent changes in the course these cant be used by next poor one.
books are really our best friend whether these belongs to kids section or higher education.