PNW has a very active audio community. We also have a few really good stereo stores as mentioned. Both Gig Harbor and Hawthorn are great places. Both move a lot of used gear.
Also that being said, both Craigslist and FBMarketplace are great places to sell gear. I've picked up almost my entire system that way.
Shipping heavy gear is hard for both the shipper and buyer. It's stupid expensive, a lot of damage happens. See nice Mac gear with broken face plates and switches all the time.
It might also be good to know what you have, and what you are looking to get for it? Is it a fire sale, or are you willing to sit on it to get a good price? Honestly, if you just want it to go, call the shops, you will get less $$ but it will be quick, and fustration free.