May be, you can start off with drop shipments like someone mentioned, and probably go for further integration down the line? I feel that any idea that has a physical or offline component has a higher barrier to entry and thus has a better chance of succeeding if you get it right, or are even able to provide some incremental benefit compared to existing options. I look at this way - if I don't want to touch something because it's too complicated chances are others feel the same way, and vice-versa.
Good luck with whatever you decide to do! :)