Yes, that iStar unit is way over priced.. and it has huge ugly zenith.. About 2 years ago I made mention to this with Bill Bailey from Nodal Ninja since he sell them too.. He said its a more specialised camera.. I failed to understand that but there again I do not understand the cameras and have never used one.. I only really judge hardware on its output results and for me its not great partially for the huge price tag.. For the money, equivalent units for the price would be a LizardQ which is super quick.. Next the Dr Clauss perhaps.. But.. there are other cheaper options..
Destiny - you just need to understand the major differences: LizardQ , Weiss and Dr. Clauss Rodeon as well as Panoneed and Seitz VR2 are sequentially shooting head/camera-assemblies.
The only difference the Lizard makes is that it´s fully automated and can be used withoutr ANY knowledge.
Then there are the Spheron, Seitz Roundshot and Panocam - being scanline-cameras they shoot continuously ONE 360x180° image.
On the opposite site there are camera-arrays which do 360x180° as ONE shot - and some of them are able also to shoot video. The most prominent is the GoPro rig.
The advantage of the "open rigs" is that you can shange the camera-hadware whereas you cannot do that with
"closed" contructions like Girocam, Ladybug and others.
So: IF you prefer a one-shot solution - for what reason ever - you need to consider a relative low optical quality
and relative low resolution compared to sequentially working DSLR-based systems - but you nevertheless need also to consider a high price.
The problem is: you need to pay much money for not soo god results. But you can also do video. If you need it.
Conclusion: as long as you do NOT NEED to shoot 360 video additionally or mainly shoot in crowded places - it hardly makes sense buying a one-shot-solution for shooting spheres.