System or integrated bindings use a pre-installed track on the ski, so bindings simply slide on without any drilling required. This makes setup quick and easy—sometimes even adjustable on the fly, which is handy if you share skis or want to fine-tune your boot position.
The trade-off is flexibility. You're limited to bindings designed for that specific system, so you can't swap in just any alpine binding down the road. System setups can also add a bit of weight compared to a traditional flat mount.
These systems are most common on frontside and recreational skis, where convenience matters. If you're a performance-focused skier or like choosing your own binding, a flat alpine ski with drill-mount bindings gives you more options and a more direct feel. But for casual resort skiers who want a hassle-free setup, integrated systems are a solid choice.