My last 1e wizard, when at low level (1st-3rd) did use darts as his secondary backup weapon because of the rate of fire. His main backup weapon was fighting dogs(!). He had taken the appropriate non weapon proficiency (animal handling, or something similar) and used his early treasure to purchase and train a group of mastiffs.
Ha, war dogs! I remember those. At low levels they could seriously shred your opposition. My 2E necromancer used 'em to great effect.
Good times.