.... is reduced accommodation space, and if you want it to perform well -- reduced weight too. That means you give up comfort compared to a same-LOA mono, and any interior accommodations and "systems" that add weight take from the joy of sailing at least a little bit. But you know that.

The Dragonfly 920 is the same size as your boat, but finished a lot nicer. It will perform a little slower than yours unless you get the Dragonfly 920 "extreme" model. You'll find the DF prices are higher than F-boats mainly because the new boat prices for Dragonfly boats skyrocketed over the last decade causing used boats (in good condition) to hold their value or even appreciate. Historically that also keeps total cost of ownership lower than F-boats because you'll probably do better on the resale end also. (I've owned 3 and sold each of the first two for more than I paid. Still own the 3rd).

If you go up in size, the 1000 has a lot more comfort than the 920 but is slower. It's basically an 8-10 knot cruising boat that can occasionally be pushed well into the teens under ideal conditions. They are older and priced in reach. The DF-35 is much higher performing, faster than the 920, but is very expensive. There is also the DF-28 which is new and fast and very high $$, and the DF-32 which just came out and is only available as a new boat (again, very high $$ and high performance but I think a good value from a TCO standpoint if you've got the bucks to lay out). There is also a used DF-1200 that just came on the market, and I'm told they're looking for mid-high 300's on that one. The 1200 is a very comfortable 39' boat with a separate aft cabin, and built to a higher finish standard than the newer models(you're welcome to come see my boat). But it's slower, generally an 8-12 knot cruiser that can be pushed well into the teens under ideal conditions. The 1200 can handle seas much better than the other models.

Talk to Richard at Dragonfly USA if you're serious. He's a great guy.