It always puzzled me as to why SE allowed purchased gear to be the same item level as bahamut coils when considering risk vs reward that has always been a staple in MMO's. I understand that range is an issue in drops and sometimes people have very bad luck but I hope the new tomes do not let you buy the same item level gear that drops in Alexander raids. At minimum only let you aquire the new high end tomes from alexander hard mode only.

You should not be able to churn out easy 20 minute dungeons for tomes that let you purchase gear on par with a much harder raid requiring more time and energy. Even casual people I know always managed to get far into the bahamut coil runs.