I've been traveling internationally on a perpetual basis for over 8 years now. My packing cubes see continuous use and a bit of abuse. I've been through 3 brands so far. The first were some no-name, no-features, garbage I picked up on Amazon. They died a quick death.

Next, I tried some from Eagle Creek. They were such an improvement. I'm convinced that they would still be around if I traveled as often as the average person, rather than full-time. But, ultimately I did end up damaging the zippers and/or wearing through the fabric in small spots that became much larger.

I'm now using some from Peak Design, and they are exceptionally tough. They also have a, in my opinion, better compression ratio. In addition, they have a separate section in them that allows me to keep dirty clothes away from clean. They are more expensive, and I'm not sure the average traveler needs such high-end compression cubes. But, they do appear to fit well within the category of buy-it-for-life.