Ski Racks, Snowboard Racks, and Locks | Ski Key Systems
If the resort you are going to has this system, it's an alternative. I always lock up my board and I see lots of people at my local hill do the same too. But, at the same time I see lots of people leaving their gear out.
I will definitely be bringing my keys with me to my trip to Whistler. I'm so excited about Whistler but at the same time scared that the mountain will ruin me for life....