I'll fly in the face of majority opinion and say that cheaper stuff is sometimes the best option
For weekend travel, I have a basic €30 soft leather bag. There's no prominent logo, but the leather is nice enough, and it's a very simple design - nothing to catch or snag or fray or break. It'll look smart for years yet because there's just nothing to go wrong with it. Plus, it makes the most of luggage allowances, and it's versatile.
What's the point in spending 10x as much on something that will look no better a few years hence, apart from having a different label?
Hard-sided cases are nice in principle, but I find they're more vulnerable to some forms of scuffing &c. (which is pretty much unavoidable), and for surface travel they can often be impractical.
The more complex and/or rigid your luggage, the more you come to rely on good design, which is where the expensive brands come in.