And I'm sure plenty of other developers, when given the choice between "Buy our computer to develop for our product" or "Develop an application on the computer you already use," they will choose the latter.
Only for the lazy and business impaired. They'll look for the tin key under the light when the gold key is just a bit over in the other direction.
Anyone with a business mind will look at potential profit, and pick the market with the biggest upside that will more than cover the costs for any development tools needed.