As a discounted option, that doesn’t sound like too bad a deal if they were only US$700 more than the Dream 220 for a pair. You can’t give things away for free and their feature set is not that much different in the important specifications to the current Unitron Quantum 16 products, albeit on an older chip. Other than the poor control design the technology inside is solid. At the same time, buying a product that has been obsolete for a couple of years comes with some risk as it won’t be supported as long as current generation products. I wouldn’t count it against the person you saw provided they were up front with you about the product being older being one of the reasons for the lower cost.