- closed loop cruising from Fort Lauderdale or similar "main" port. I like the airfare options that are available to me by flying into a main port.
- 7 day itinerary - can't get more than 1 work week off at a time
Most of the lux lines travel all over the world and may only do one 7-day Caribbean per year.
Crystal features much larger ships than the others, so they tend to have bigger casinos. I don't know what you like to play in the casino, but if it is slots you may not like small lux ships much.
Crystal generally has the biggest casinos onboard any lux ship.
I was just looking at an upcoming Seabourn cruise in the Caribbean, RT St Thomas. It is a small 200-passenger ship with a tiny casino. It is also in port every day so that casino would be closed while in port.
If I know more about what you like I could probably go farther, but I am guessing you would like Crystal. But I need to know how you rate for importance:
2. size of staterooms
3. number of onboard activites
4. Movie Theaters
NOW - if you really don't have the budget for lux I might suggest looking at Azamara, Oceania or the older and small Holland America and Princess ships. These tend to be very quiet and personalized like lux ships, but at far cheaper prices.