I love the mono speedy, but I bought the Damier speedy instead.....it's a little more low maintenance for me (klutz that I am!). Plus, I live in a wet, snowy environment, so that was a factor as well.
I will probably end up with a mono Speedy someday anyway! I think it is timeless, and a real beauty.
So what if a lot of people have one? It's that popular for a reason...I say go for it!