Along w an Aqua Drive I'd have paravanes on Willy too if I had lots of money and time. Lots and lots of things on boats may be desirable but wether they make sense on your boat or my boat is another question. My boat is being worked on by Chris and myself and also by yard workers. Every dollar and every hour spent on maintenance can be spent out on the boat or doing something else and as we're getting older a balance of how to spend one's time and money becomes more important. Our outlook on modifications, upgrades and other improvements is now much closer to the real world than in younger years. I'm quite sure the AquaDrive and paravanes won't find their way onto our boat while we own it. Just don't need them.
My ex-brother in law and I both had an Albin 25 and we both now have Willard's. He is involved in commercial fishing and more or less needs the stabilizers. He had them on the Albin and is keen on getting them on his Willard. My needs are different. I just don't need them.