So from my perspective, going through the qualifying races and getting a spot for Rotterdam (no matter how pointless you think it is).
I paid my TA membership - which I would have anyway.
I paid race rego to the small companies that ran the races I did. Not TA directly.
In addition to the WC race entry, I paid a team supplement which goes towards TA support over there - mechanic, doctor, insurance etc. approx. $400.
I had to buy the race uniform - not from TA, and standards/rules not set by TA. So not TA directly.
Not sure how else TA is milking me as a cash cow? Is it because you have to be a TA member to go?