Is it considered bad taste to buy the same designer bag as my friend?

One of my best friends bought his girlfriend a Coach for their anniversary, and I fell in love with the bag. Not the style of the bag itself, but the fabric/print/whatever. I didn’t bother going to the Coach outlet to buy it, because I figured it was in bad taste; we see each other all the time.

Except I kept seeing it everywhere, and I loved it more every time I saw it. So finally I caved, and while it’s not in the stores anymore because it’s a winter style, I found it on eBay and bought it and a matching wallet.

Now, the style/size of her bag are vastly different than the one I bought, but it’s the same fabric. Is it considered bad taste if I use the bag when we’re out with them? I know it’s vain, and I know it’s trivial… but while I personally don’t give a crap about these sort of things, and therefore don’t know the rules of “handbag etiquette”, I don’t want to piss off someone who might.