Here's an easy one (I think)

[Rik]

Why buy a Wet Suite?
As a Newbe your not really sure how dedicated you will be to this "New Hobby"!
Your already spending big money on other gear!
If you dive in the Mid West you need a top notch Cold Water Reg as your primary money sucker this is what you need to spend the money on!
[glow=red,2,300]This is your most important part of diving![/glow]
Yes if you got cash laying around or your confident that you will be diving for a long time, Buy a dry suite!
I dive Lake Michigan just fine without one. I use a 7ml Suite with a hooded core warmer & warm gloves or mittens!
I'm just fine for one dive in 39 Deg. water but I will admit two dives require a warm up!
As far as wet suites go I would spend the extra cash on one with glide skin or whatever the brand name calls the inner surface that slides on easier.
Zippers at the ankle's but not at the wrist.
  Yes in the future I will buy a dry suite, but not yet I've only got about 75 dives in so far and lots of other gear I want (Need?)
         Rik O+<