But you have to realize, Flash can be used for so many things.. from animations to full length games, to creating full blow websites. Believe me, flash has incredibly advanced features, in animation and programming.
Of course tom doesn't pay for it... he probably bought a copy of flash 3 back in the day, and I can almost guarantee macromedia give tom free/discounted copies for the advertisement of their product.
Ok, so many people steal it, but still....