Of course they are. But I'm fully sure that Microsoft marketing didn't take in charge the real numbers. They seemed to be only focussed into the US market.
Let's try.
How many FoxPro developers you guess there are in Latam? I'll bet that Microsoft don't know this number and figure a lower one.
>Loss of sales is always a calculated risk. I have seen products dropped where I work and in each case, management has calculated the risk of customers moving to competing products. Microsoft would have been stupid to not do the same. They probably have a very good idea of what those numbers are and still determined that the decision was worth it.