Very good post BM.
I think it all comes down to a lifestyle choice and the sacrifices you are willing to make to advance your career.I believe on a purely lifestyle choice and from what you state I think you should stay where you are.Most Africans are getting itchy feet and its basically about Dubai.Things like the weather,unsafe roads,rising costs of living and the worries about what your kids will turn out like being raised in the plastic Dubai environment.Its far better to be in your home country as a part of society than to be an expat with no safety net.