erase

Hi, Im lvling my Whm to 37 to sub against my Blm If im stopping at 37 do I really need erase? Should I just bite the bullet and buy it?

Ok guys I want to know some input. I have seen the scroll, Erase in AH for 300 K to 400 K. I have been debateing if its worth farming for or should I worry about other spells or gear. Some have told me it is a luxary so I have not worried a great deal about it. But after leveling some I find a...