To ink or not to ink?

I've been toying with the idea of getting a tattoo for about 5 years. The permanence both scares and thrills me. So tell me your thoughts...

Behind my right ear in brown ink similar to this (pic courtesy of my gorgeous cousin Jessica)

OR... On the inside of my left wrist in white ink similar to this (pic courtesy of my beautiful friend Beth)

The tat will be a very small version of this...

Thoughts??