I just moved to the area and fell in love with Zia the moment I walked in the door. I've worked at the big box chains and an independent store as well and Zia is a pretty good combination of both. They have a great selection, decent prices, friendly and helpful staff and a good environment.
For those of you who whine about Zia paying out very little for your used items and then selling them for way more - that's how this type of business works. How else are they to pay the overhead and still make some profit? After all, profit is what it takes to keep a business open.
And for those of you who complain about Amazon, Half, etc. being cheaper - you obviously don't get it and are partially the reason why so many awesome stores have closed their doors over the past 10 years.
Anyway, Zia is pretty awesome and I hope the .com's and whiners don't eventually run them out of business.