I'm interested in buying a used DDI to enhance the DR capabilities of my small, home-based computer repair business (
Sabo Computer Repairs). My customers are primarily residential folks but I have the occasional SOHO/small business customer. Recoveries costing over $300 are non-starters for most residential customers, so cost of equipment is a concern.
Serge of Deepspar told me they don't sell used/obsolete product but said used DDIs can be found in the marketplace from someone upgrading, for around $1,500. At that price, I'm all ears!

PS: I'm in Ottawa, Canada.