I sail mainly studio cabins. They have been, in my experience, about $100-200 more than an inside cabin. If I am sailing on a new ship (I am itinerary motivated than ship motivated), I get the studio every time. I like the solo cruiser program for the most part. The solo's and the concierge make the experience better. I like having a lounge with snack and coffee at all times, I like having the happy hours...etc.