Well, I'm not a Ducati owner (i'm still contemplating), but I own a Japanese twin (RC-51). I think that the magazines tend to split the bikes up by displacement and then by configuration. The Twins all get lumped together for comparison, the I4's etc. Every now and then the twins will go head to head agains an I4, for example the GSXR1000 vs. 999r writeup. Are you missing something, to an extent yes. Should you sell it just to see what you are missing, not really. I really like the twin coming off a I4. It has different character than an inline and is nice for the street. If I were looking for a racebike would I choose the twin, probably not because it would take a lot to make it competative against an inline 4. I will be getting a new bike in the next year. It will either be another twin or possibly a v-four if the Aprilia rumors are true.