This is one of the main reasons for last year's overwhelming preference for NICT textbooks. However, an even more crucial factor is the fact that national textbooks are much cheaper than privately published texts.
但一個更關鍵的因素是，相較民間各版本，國編本教科書價格更為低廉，這也是使各校舍「民間」而仍就「國編本」的主因。