My first drysuit was a 1/4" (5mm) Wardell. Since I got a deal on it (someone had put a deposit on the suit then left it) they were willing to do some alterations, since the person who was buying was obviously taller than 5'4" me. At $600 Cdn it was a great buy.
However, as has already been discussed, there are pros & cons to full neoprene suits:
Pro
- inexpensive.
- easy to repair
- good cold water insulation, so less undergarments required.
Con
- decreased mobility than other materials.
- require the most weight to become neutral.
- MAY take longer to dry (depending on the neoprene).
- may be too much insulation if the water temps are in the upper drysuit range.
You may want to take a look at ALL the drysuit material options before you decide to go with full neoprene. There are pros & cons to all of them. If you do your homework, you can find one that fits both your needs AND your budget.
BTW, there are some great Cdn companies you may want to check out like Whites, Abyss, and Brooks. Afterall, who knows cold water diving better than Canucks, eh?!