Invariably someone on the boat will bring it all back around to the "hassle" of donning/doffing a dry suit vs a wetsuit.
I hear that one a lot and its absolutely rubbish. Getting into a drysuit is a hell of a lot faster than squeezing your way an inch at a time into a double layer 7mm semi-dry! Getting out is even easier.
I can get into my drysuit faster than my 3mm wetsuit and booties.
Maintenance for my drysuit is pretty identical to wetsuit - hose it with fresh water.
Other than that i max wax the zip one a month or so (wetsuit also needs that). Oh and 10 seconds putting some talc on the sleeves if leaving it for any length of time.
Wet diving need to transport a heavy multi piece wetsuit to the site, and a towel and come in or bring dry clothes. Drysuit i can turn up in my undersuit if needed, no need for towel and drysuit fits into a small bag.
For me anyway a dry suit is better than a wetsuit in absolutely every respect.