For the waters around this region, I would certainly recommend it, especially if you want to dive year round. Except for a 3mm wetsuit, I have no other wetsuits; if it is too cold for that, then I will wear my drysuit. Mine is a Tri- laminate (membrane) style. There is no inherent insulation in it, so I wear a variety of undergarments underneath, from just some thicker Under Armor, to some 150 gm undies I dive in cool waters & the FL caves, to 650 gm undies for the coldest waters. As was mentioned above, fit is very important. I've had 3 drysuits so far (I'm a bit short & "well insulated"). The first one was a stock size & was very long, but barely fit me width- wise. I was not able use it for very long because of that & had to sell it. The second suit was a custom & fit perfectly! I love it. I still have it & use it as a back- up suit. The only minus is the sleeves, though cut for me didn't leave me much room to be able to reach back to manipulate my doubles valves, making that difficult. I had the new suit (in my avatar), cut just a tiny bit larger in the arms & it works beautifully! I use the DUI TLS 350's. There are many other brands, also. Try to get with some dive shops who deal in drysuits & see if you can at least try them on (even better if you can try them in the water). If you're not in a hurry to get a suit, you might even consider making a manufacturer's Demo. I know that DUI & White's have "rolling demos' that travel all over letting people try their products. If you do decide to get a drysuit, I would certainly recommend that you take a drysuit course for safety because it is another air space to have to deal with & manage. It takes some getting used to. If not a course, then at a minimum get with someone with some decent experience in a drysuit to mentor you a bit. Here's some of the pro's & con's I found with different drysuits:
Tri- laminate: Pro's- lightweight, less expensive, dries quickly, generally neutrally buoyant (buoyancy is more dependant on undergarments worn).
Cons- No inherent insulation of its own, not quite a durable as other types of drysuits.
Crushed neoprene: Pro's- some more insulation than the tri- laminate (thus less to wear underneath), somewhat more flexible, The most durable durable .
Cons- The most expensive type of drysuit, some positive buoyancy (more weight), Slower to dry out.
Neoprene: Pro's- More durable than tri- laminate, Less expensive than the crushed neoprene, The most inherent insulation (even less undergarments to wear), If flooded, basically just becomes a wetsuit, the most flexible.
Cons- The most buoyant of all the drysuit types (lots more weight), can take a long time to dry out, more expensive than a tri- laminate, but less than a crushed neoprene, rather heavy weight.
It's a big investment, so weigh your options carefully. For a new suit, you can expect to pay roughly $1000 on up to more than $3000,...... slightly less for a used one (depending on type, manufacturer & condition). Hope this helps.