Because there's no value-add to the equation. A one-time sale with a slim margin isn't going to draw a lot of interest from a reseller. Yes, there's a large potential value-add for resellers in SAN services. Companies like Smart and Friendly haven't failed because they had poor technology. They struggle because the stories they sell with are less than compelling.
Bottom line is, therefore, more than the bottom line.
We have to sell by telling better stories to our network audiences. Network administrators do want this technology. Let's meet back here in a year, and celebrate more success instead of lamenting more DOA companies.