We did our first "gay" cruise last year to celebrate our 20th anniversary. We've done about 20 others on regular cruise ships which I still enjoy. I was nervous as we are not party people but it was fantastic to be on. You could enjoy the eye candy without any fighting and you could find a nice quiet area to read a book. We met alot of people who were in the same frame of mind as we were too.
In August, we are going to do a Mediterranian cruise (last one was Mexican Riveria) which we booked while we were onboard.