If you call yourself a professional business, you make provision accordingly. Take for instance, you require desktops...... You have no choice as your business depends on it. Do you revert to the old pen and paper if the price does not suite your budget and complain that the prices are just too high and you cant afford it. You budget and purchase accordingly.
The point is you need to make provision for every instance in your business to make it run efficiently. Yes the cost of a leased circuit through Telkom is significantly high, but if it is a requirement you implement.
I hate the fact that companies pass the buck. Just imagine if one of the ISP's had to complain that a 155 meg pipe was just too expensive and because of this they were implementing a 64k because this was all they could afford. I don't care how small your business is, you make provision for your needs.