I agree basically Dave. All I would say is that I don't think we're buying people with the deliberate intention to sell them for a profit, we're just going for players who will have value throughout their contracts so we won't be left with as many overpaid players who we can't shift.
So the 'resale value' point is a bit misunderstood IMO, it's more a question of a player being a safe investment than them being sold later if they do well.