Interesting how the conversation has turned to whether or not a roadable aircraft makes economic sense, rather than the merits of the design as a flyer/driver.
Not really since that is the primary issue that keeps the pipe dream of a flying car non-viable. Well, that and the disconnect between the requirement to have it light enough to fly and yet has to be strong enough to withstand the impact of a typical highway speed car crash.

Also not to mention that a large swath of the population barely has any business being behind the wheel of a car let alone something that leaves the ground....

Not very useful in a Wisconsin winter.
That's simple enough to solve: don't live in Wisconsin during the winter.

Flying is fun. Doesn't make much economic sense most of the time, but it sure can bring a smile to one's face. Seems to me the same would probably apply to these roadable aircraft being developed.
This is true but if you want to fly, build/buy something meant to fly. If you want to drive, buy a car or motorcycle.

If the Terra was $80K, maybe some market. But at $280K , think of all you could by for that, most any performance gen av single,late model used but in good shape, or an award winning T-6, or L-39 or T-28.
Hell, for $280K, I could fund the majority of building myself an airplane (with steam instruments) that could take four people to Hawaii. Why would I spend that kind of cash on something that is, at best, the car and airplane equivalent of the Trabant (for those of you not familiar: http://en.wikipedia.org/wiki/Trabant)