Their REI-branded stuff is a pretty good value and has consistently become better and better winning several awards annually in Backpacker's magazines Gear of the Year. It used to just be the tent (Half Dome) that was well regarded but I think this year, both the tents, their backpacking packs, and down sleeping bags are considered some of the best gear and usually 20-30% cheaper than the bigger name brands that they also sell.
Also, I generally use my 20% member's coupon for things that never go on sale such as bear canisters and climbing shoes.
For budget outdoor enthusiasts, I would recommend Walmart's Ozark Trail brand. You can find a sub-4lb backpacking tent for $30 on sale (which is still twice as heavy as a high end backpacking tent but costs $30 vs. $300). They put out a lot of decent gear but never the lightest or the most durable.
If you want better quality gear but only clearance/outlet, try sierratradingpost - basically the TJMaxx of outdoor gear.