Block erupters are not profitable.
Yes I know that, I'm not buying them to make ROI solely from them. Maybe you should re read the post.
Why do you want to buy so many BEs then? If you don't want to make ROI, make money, then what do you want to do?
Is the rationale of starting a bitcoin based business with an interest in investing and mining, to actually have bitcoins? If you think yes then I think you can follow my logic when I stated: I am fully committed to starting a bitcoin mining/investment/useable tech company for southern Africa.
That means having a viable means of generating bitcoin, even if it is below ROI.
Hope that answers.
Edit:
Please also notice that I mentioned USB BE's OR 2 Blades, not both. I think it goes without saying that I would prefer to purchase blades.
So you're trying to borrow BTC, which you will spend on BE's which in turn will give you a steady income for a total amount of less BTC than you borrowed. In what universe does this make sense? What value does it add to your company that it has a few units hashing and never making a profit?
In a universe where we'd literally be the first business country wide to have anything to do with bitcoin.
So you're the first in the country? And what about it? It doesn't make mining with USB BE's any unprofitable. For every BTC you put into those thngs you get 0.5 BTCs out (as an example, the actual value will be different). Where does the other 0.5 come from to make you break even? Hint: It doesn't happen.
You say you want to take them apart to see how they work. Well, unless you have an electron microscope and knowledge of microchips, you're not going to figure it out. A USB BE is a chip on a small PCB. There are a few components on the PCB to manage power flow to the chip as well as to communicate over the USB port. But the real work is being done in the chip. And you're not going to just take it apart and find out how it works.
I seriously question your business skills if you think that putting in X amount of money (the loan) to receive periodic payments (mining income), the total of which will *never* add up to X, is a good idea. If you want a constant income stream (why?), just put the loan amount in a cold wallet and transfer part of it to your active wallet periodically. There, you're generating "income" and you'll get more than you'd ever get by buying USB BE's.