OK, so everyone is telling you to buy a dry suit. I think the results of your poll would be very predictable and wholly unscientific. If you understand the kinds of bias that are inherent in this kind of forum and this kind of question, you will understand why.
But that does not make it wrong.
I, too, am a dry suit diver, and had you asked me personally, I would have advised you to go in that direction. The reasons for which I would do that have nothing to do with the number of votes one way or the other. It has to do with the reasons for the decision.
Before I made the switch, I did not want to dive dry for a number of reasons for a long time, and I will go over each.
1. It looked like a lot of work.
OK, I saw these people putting wax on zippers, taking care of seals, putting on all that gear, etc. I said, "Man, that's too much." Now that I do it, I don't see it as a big deal. It isn't all that much work. If you are doing a day's worth of diving, it is a lot less work, actually, as you can leave the suit half on and just pull it up for the next dive.
2. I didn't understand the P-valve part.
In cold water, I had to Pee badly during dives. I could not understand how that worked with the dry suit. Now that I know I can easily take care of this without covering myself with liquid excrement, it is a plus rather than a minus.
3. I didn't understand what kind of a thermal advantage I would get.
Why go to all that trouble and expense when you can get the same thing with a wet suit? Well, you can't get the same thing with a wet suit. You stay way warmer way longer with a dry suit, and you can get in more dives and longer dives with it.
4. It costs too much.
Yes, a good dry suit costs more. Whether that extra cost is worth it or not is up to you. It is worth it to me.