No offense but you don't have an argument by saying "the scroll is easy to get off mobs but costs too much on the AH so I want to auto-learn the skill instead!" If it's so easy to get, get it yourself rather than paying that 500k off the AH.

Anyways back on track, Auto-learning abilities sucks balls. In FFXI getting all the tele-scrolls and getting Utsusemi-Ichi, getting Asuran Fists.. I felt so proud getting these, because I worked for it. I woulda just quit FFXI long ago if I just auto-learned these skills just from getting to the right level. It's just not as special/