I had my cartilage on my ear done twice, but since I wear over the ear hearing aids it kept getting very sore-- not infected, just irritated. I had to give up on that. :( I kinda wanted it so the hearing aids wouldn't be all you see. I also had my belly button- until I had a laproscopic appendectomy- then it had to come out.
Just from experience- for the initial piercing it may not hurt to spend the extra for 14kt gold or titanium. I've noticed that my piercing done with stainless steel took much longer to heal than the titanium did. Also, the titanium is so light you barely even know it's there, so you have less irritation. Just my two cents... even with my 15 yr old basic ear piercings (double pierced) there are some days all I can wear is gold or titanium. I tend to be allergic to anything, so if I can wear titanium with no problem- I figure anyone can
I've debated getting the cartilage re-done, but funny thing- I keep spending the $$ on yarn... oh well... guess I don't have my heart set on it if the money disappears so easily!