Thank you for your opinion and your question. Such a reason could be, for example, their wide FOV.I own both, but don't think I can add anything to what has been said already on the many and various threads concerning these two instruments. Similar field of view maybe, but otherwise like chalk and cheese, in terms of optical character and ergonomics (ENORMOUS eyecups notwithstanding!).
Ergonomically, I would suggest both are very much an acquired taste, especially if you don't wear glasses. Try before you buy has never been a more appropriate piece of advice, especially as the forum is littered with reports of unacceptable quality control and sample variation, for both instruments. I'm also not convinced that either is a strong candidate as a travel binocular. So, to turn your question on it's head, is there actually any major reason for you to consider purchasing either of these instruments?
However, I already have the SRBC and am very satisfied despite all its specifics. Yes, there has been a lot of debate about both instruments, yet I was interested in the opinion of someone who has both. I understand that they have a lot of differences, but they also have a few things in common, such as similar magnification (almost 7x vs 8x), similar FOV, similar weight, both are relative novelties and both are MIC. Unfortunately trying out the unit beforehand as you know is not easy unless you want to follow the martyrdom of sending it back. Plus you need to have the unit for at least some time and use it; in my experience sometimes first impressions and conclusions are not correct and you get used to a lot of things over time.
So generally I get the impression that for you both are different enough and you have a reason to use and enjoy both, depending on the need of the moment and they are not interchangeable.