mm..well..I have a speedy..and I'm about 10% close to getting my Manhattan (LOL)..I like the Manhattan cuz it's veeeeeeery classy and holds it shape up really well. I like my speedy cuz it's very casual and great for travelling...I'd say get both...since you have the marilyn already, go for a speedy for casual first, then grab the manhattan down the road! if you don't want two mono bags, get a speedy in another pattern, but definitely grab the manhattan!