My Mini Sweater

Here I am sporting my very own minisweater. It took a while to make as most of the instructions was all new too me, I'd never heard of raglan sleeves I didn't even know what I was knitting first! But I had lots of help from Shannon, she clued me in on the fact that I was knitting from the top down and it was all one piece. I also had help from and a knitting man at my LYS who showed me what raglan was. I Still need to find a groovy little button.
I used Heirloom 'merino magic', 8PLY, BLACK.
Now do I add the edging too it or not, sounds time consuming?
I wouldn't mind knitting something similar but with long sleeves.