William ...
Thanks for writing ... the SWEEPS airplane is not just a membership promotion, but also provides (unlike most other aviation organizations and businesses) a chance to write-up what many of our members do each year (never to this extent all at once - but some portion) and that is FIX up an older airplane. The PILOT magazine stories provide valuable insights into PAINT, AVIONICS UPGRADES, INTERIOR, ENGINE, MODS, etc.
In doing these things, that make us very different we do end up with a high $$$ airplane.
In the end, however, we're not disappointed that winners sell the plane - that's a fact of their personal finances, etc. In each of those stories that were in the DEC magazine, they were all very much winners. Some had airplanes they were comfortable with, others needed the $$$$ to finance college for their kids, others used it to pursue an aviation fast track career ... so they won, without necessarily keeping the plane ... for what the current SWEEPS COMMANDER is worth anyone could sell it, pay the taxes and then choose whatever as you state "more affordable" airplane to own from the proceeds.
That's our thinking, at least and a little more of the strategy of owner education versus just a prize ...
In terms of training - YES - in most cases this comes with the prize. The TWIN COMANCHE winner got specialized training, his twin rating, etc. all paid - but once again - that's taxable.
Hoep this shed some light on the AOPA Sweeps.
--Phil