Very few people dive wet in the PNW for very long. There are a hardy few, but most people who want to dive regularly around here go dry. If you are going to dive in the winter at all, it's almost mandatory -- it's not the time in the water that gets you, it's being wet in 40 (or lower) degrees, especially if the wind is blowing at all.
Neoprene is neoprene, and whether it is in a wetsuit or a dry suit, it has issues with progressive lack of rebound over time. This is going to be related to the initial quality of the neoprene, and the depth to which and frequency with which you dive. I've found, for example, that I can detect a gross change in fit and water movement with a hood in about a year, which is in the neighborhood of 180 dives or so. On the other hand, my 5 mil wetsuit fits me like it did when it was new, four years ago -- but I'll bet it doesn't have 50 dives on it, and many of those have been in a pool.
Dry suits can run you, new, anywhere from the $600 or so that DRIS is selling one for as part of their Black Friday sale, to $3000 or more. Material, workmanship, options, customizing, and brand all play a role in price. From my observation, cheap dry suits are usually cheap -- the material is not durable, and the cut is pretty simple (so not very fitted). But they can be a good entry option, while you're seeing if you are going to do enough in the sport to make it worth the investment in something more expensive. I bought a $600 Mobby's suit as my first suit, and it lasted me a couple of years, until I started the upgrading process that ended with my Fusions.
Used dry suits can also be a bargain, if you are at all handy. Often they need seals, which are not hard to replace. If they need a zipper, that's usually a shop item, and can run $300 to $400, depending on where you have the work done. This can still be a bargain, depending on the sale price of the suit. The one thing you want to avoid is the problem suit that has a leak that nobody's been able to find or fix. Leaking dry suits are a bad deal, no matter what they cost.
There are a lot of threads here about dry suit materials and the pros and cons of each, but if you want to buy once and use your suit for a long time, I'd recommend going with at least a medium-price trilaminate or compressed/crushed neoprene suit. You'll cry at the initial outlay, but it will be worth it in the long run.