If you're regularly chasing fresh lines outside the resort boundaries, freeride/big mountain poles are absolutely worth it. They're built specifically for the demands of aggressive off-piste skiing, with features that make a real difference when conditions get serious.
The biggest advantages are extended grips and powder baskets. Extended grips let you choke down on steep sidehills and traverses without needing to adjust your pole length—super handy when you're working across a tricky slope. Powder baskets keep your poles from punching through deep snow, which is frustrating and exhausting all day. The construction is also tougher to handle variable snow and the occasional rock contact.
Many freeride poles are adjustable too, so you can lengthen them for uphill approaches and shorten them for the descent. If you're mostly skiing groomed runs with occasional off-piste forays, standard all-mountain poles will serve you fine. But if big mountain lines and deep powder are your main game, these purpose-built poles are a smart investment.