Brian - sorry to hear you did not get a good conversation around your Hasselblad trade-in with Hasselblad - perhaps others can learn from your experience and reach out to a variety of experts -- including us -- to determine their options.
This topic is for Hasselblad trade-in, so I will not address the opinion of Hasselblad as a closed system - the capabilities of the Hasselblad system are abundant for nearly every photographic discipline rendering the open debate as an expired, old argument.
On a related note to your transaction, the multishot technology is hard to beat with any single shot comparison; no color interpolation and 4x the scene data yields a level of detail that is near the top of photographic capability. If you can translate that into business value to your clients, this is a definite differentiator for your revenue potential.
Also, if the goal is not revenue-oriented, rather - quality-oriented (an example is a private collector of fine art with a desire to create best reproduction), the quality from multishot is truly an advantage. By locating this kind of buyer, you may have been able to reach a satisfactory exchange for each of you.
To summarize, if you are in the market to trade/upgrade/sell your equipment, visit a few MF resellers who are experts in the systems to get a good idea of your options; some are manufacturer programs, some are trading on your own or hiring the reseller as an agent. Either way, you are able to factor more information into your decision versus less, and that is empowering.
Let's keep this topic on MF trade-in and related replies; if you need to address other issues, start a new topic or send me a private message.