I'd agree. Unless you're loaded, intending to go out for hours in heavy weather or attempt long cruises/offshore trips or launch daily in winter a dry suit is an extravagance in my eyes.
A decent sailing jacket, fleece, wellies and trousers are far more versatile/leisure friendly when stopping off at places, removing some of them when the sun comes out and using for other purposes in life like walking.
I personally use sailing jacket, fleece, cheap waterproof trousers, waterproof north face walking trainers and sealskinz waterproof socks.
We cruise and stop off at pubs, beaches and towns, you look a bit of a ???? In a full dry suit.
Dry suits are fairly extreme for a general open boat user.
Waders are a handy option for launching, though wellies will normally suffice. If you have a roller trailer and are at an ok slip, you shouldn't need to get feet wet!!!
Welcome by the way, enjoy your boating and make an informed decision based on all these comments. Only you know what's worth spending your hard earned dollar on and what would work for you.