I think Brady LMaD contestants get a shirt for being zonked. Pretty lame, considering the prior versions gave away pretty reasonable consolation prizes like a TV or stereo.
As for TPiR, $300 sounds pretty damn cool. The experience of being on the show would be cool, but to have a little more spending money for a trip to L.A. is awesome, especially since, last time I checked, you'd get paid right then and there since it's under $600.
Other than that, I think this was the last show to give true consolation prizes. The last one I can remember was M.G.'s Crosswords offering the Croton watches.