I was at the Boise Towne Square Mall (what's left of it) yesterday and noticed that Dillard's, Macy's, the luggage/travel store, Nordstrom's Rack, and Penney's all had large selections fo deeply discounted luggage items. Some were brands I've never heard of but they looked okay to me and user reviews can be quickly researched online. Dillard's also had several units that had been returned unused (maybe unwanted xmas gifts) and marked down well below 50%. Suggest you give your local shops. and stores a visit just to see if there are some good bargains.
Rolling luggage comes in literally hundreds of brands and models, soft- and hard-side versions, with all kinds of interior fittings and organization systems that range from $50-300 for the standard 22"/40 liter carry-on size. Difficult choices. If you increase capacity 50+ liters the number of choices leaps to probably thousands.
Just my opinions, of course, but if I were looking for rolling stock (and I'm not, I'm a backpack carry-on guy), I'd want large diameter soft wheels, a sturdy locking handle, a color easily distinguished from the millions of similar bags, a simple but secure closure, and uncomplicated internal organization because packing cubes.
Try to have fun shopping.