Hate to use buzzwords, but the acquisition was synergistic for NWBO, but is just a very small asset for Corning, which is going through some cost cutting, including a reduction in its R&D outlays,
I doubt the market is very large for this MicroDEN product right now because, for the most part, the only need for dendritic cells are from clinical trials, with only minimal units required for each. Corning was probably willing to do the deal with Northwest Bio because they will now have a commercial market for their consumables business, and it would eliminate their sales and marketing budget. Well that, and the thought of owning some NWBO stock from the deal probably had them as giddy as schoolgirls. :)
For Corning, I think their deal with Flaskworks may be similar to the printer and ink business model. Flaskworks manufactures the MicroDEN unit, and Corning manufactures all the disposable consumables, and is responsible for sales, marketing, and support. (revenue shared accordingly) When I checked with a distributor last year, the MicoDEN unit was priced at $15k, and all the consumables were ~$800.