Since you work in the office, I'm not sure if these are formal enough but try: For a slim/skinny fit try Wings + Horns Westpoint and United Stock Dry Goods Chino. For a slim fit try Left Field Miner Chino. Note that these are heavier twill chinos.
Thats a good point. Usually Gios go on sale twice a year ranging from 30-50% off. At that price point they're a good deal. That being said, W+H retailers also have 30-50% sales on their chinos. I don't believe Left Field goes on sale often, and if they its probably not much.
I agree. I owned a couple of pairs. The fit is nice but other than that, they are pretty overrated. Nothing special really. At that price point you can get chinos with better construction, fit, and material (I.e. W+H, Left Field, etc.)
Drift3r thanks for the helpful reply! If you don't mind me asking, what are your stats? And what are the measurements of your 28s (as in your other jeans/pants) in the waist when flat? 14.5" across? I've heard that Gustin and Tellasons are really comparable. They use the same factory, so the quality is very close.