We haven't sold ALL of our best players.
Besides, what I was really getting at was that graciosa's post deliberately tried to give the false impression that Spurs bought players just to sell them at a profit. A reminder of what he / she wrote:
"Spurs buy stock to sell. Big clubs build teams, Spurs build their bank balance".
And that is demonstrably untrue. We have only sold the likes of Carrick, Berbatov and Modric very reluctantly and under great duress. We have only sold them when they have been relentlessly tapped up and got at by much bigger, far wealthier clubs. We have only sold them when we had little choice but to do so. It is perfectly apparent that we would far preferred to have kept all of them.
But yes, as you say, we do have a policy of buying players who are more likely to increase, rather than decrease, in value.
graciosa, bizarrely, seems to think that a bad thing.
I'm eternally grateful that he / she is not in charge of our club. Nor ever will be.