I voted yes. But, that's if your going to use it for it's intended purpose. Otherwise, what's the point? It clutters up the boats clean lines.

On the hybrid go-fast cruisers i.e. Formula 37 and 40SS, and Fountain Sport Cruisers, yes. They look good on a boat with that type of presence, and the functionality of the arch is almost always utilized on those boats for lights, top stowage, and nav/radar antennas. Important items for cruising in boats that are built for that purpose.
On a performance boat, not a fan.

I think the arch dates the boat back to the Miami Vice days. I think they are ok on performance CC's tho. Wardey