People buy a 26 because of capacity. Real estate needed. Abcbarbeqcue tells us that "the 22 version is enough, it really works good in a 26." Sorry, we bought the 26 for capacity - if we buy an accessory for the 26, we don't want to see it curving away from the walls of the 26 wasting space where there could be a lot more charcoal. Scale it up, take advantage of what we use.
And many of us are just pissy enough to NOT buy the SNS because of this. Yes, it is more trouble to build a snake. But I can burn a snake in my 26 for a lot longer than the SNS can burn. And actually have more grill space. Because most of us are capable of putting on gloves or grabbing a couple of pairs of pliers and rotating the cooking grate after eight or ten hours. Buying the SNS would be to buy convenience, and a cool product, not the ability to do something new.
I don't doubt it is a great product. I know that it is, I recommended it to my sister when she wanted to follow me by buying a Smokenator. ( I bought a Smokenator one week before the SNS was announced. Talk about PO'd ) But give us the product we want. A great 26er version. Not just "Good enough."