To understand the mindset of people who run their dogs for excercise or at rallies, you need to understand the function of a Siberian Husky.
Their function in life was to transport the Chukchi people and their supplies to their winter hunting ground by sled and subsequently back to the village with their hunting prizes (usually a couple of seals and some fish) and so the dogs function was to pull a moderate weight, at a moderate speed, great distances.
Although in todays world their function has changed, (as we do not need to hunt for our food and we have vehicles to transport us around) their mindset has stayed the same (most good breeders, believe it is vital to maintain the working attitude and mannerisms in the breed that the Chukchi people looked for) and so the general opinion of Siberian Husky owners of today is to utalise the minset that was/still is instilled in the genetics of the dog and still work them to some form.
The above paragraph sounds hollow when i read it, working Siberians is so much more than this. Back when the Chukchi people utalised the breed it was for transportation and although they looked after the dogs and in some ways loved their dogs, they were a means to an end. Today we run them for pleasure for both ourselves and our dogs but you really need to experience standing on a rig/sled being pulled by Sibes to understand it.
For me, it is not the racing/rally scene that is the important part! yes it is great to meet up with friends,have an enjoyable weekend, compete against other teams and try to get a good placing etc, but for me, there is nothing more satisfying than to travel round a forest just you and your dogs enjoying the scenery. Both you and your dogs allert, you watching out for the next bend and keeping one eye on the lines & your dogs and the other eye on the road ahead & the trees in case an animal suddenly darts in front of your team and knowing your dogs are keeping their ears active waiting on the next command to be ushered from you lips.
To me the buzz is when we are trying out a new trail, not knowing what is around the next bend and having confidence that my dogs will respond instantly to my commands (even at speed), to negotiate the balance on the rig or sled when your team takes a tight bend or run over rough terrain. Then when you are back at home and have seen to the needs of your dogs and everyone is chilling and content because they have enjoyed the day, THAT IS WHAT WORKING IS ALL ABOUT FOR ME.