PNW resident also (Woodinville and LFP near Seattle). Got a Weber Genesis with side grill and enclosed bottom in April 2014 (from McLendon). No complaints and still going strong in 2019. I clean it, but am not as good as I should be. It has always had a cover when not in use. My Weber kettle grill lasted 18 years before I sold it for ~$40-$50 (Simpsons yellow model).
Get the Weber.
Get the stainless steel grate if you want to or can.
Get enclosed bottom, especially if you are getting propane tank model.
Buy 2 propane tanks at the hardware store and go to UHaul or McLendon or your favorite place to refill them.
Side burner is most useful in summer when you want to cook corn or beans or whatever and don't want to heat up the kitchen.
I 2nd the recommendation for King Kong cover.
The thermometer display on grill cover is great.
Photo is me cooking Thanksgiving turkey on our deck in 2018.
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