The Four Roses tour is excellent, but they do a summer shutdown and during it the tour is shortened (still a full tasting) so check before going.
I went to the Bourbon Festival Preview in Bardstown a few weeks ago. I was under the impression that you got one sampling in a keepsake glass from each distillery, plus all you can eat food from local restaurants.
Not a bad deal for $40 I thought.
Turned out it was all the samplings you can handle from each distillery, each in a keep sake glass (some distilleries ran out of glasses) plus all you can eat food from local restaurants. Each distiller also had a batch of a "signature" cocktail to try and Maker's was giving samples of the new Maker's 46 coming out this summer.
STELLAR deal for $40 if I might say so. I certainly had a good time.

They are doing another one in Frankfort on June 13th I think. It is $55 for that one but they are giving away an elk tag to one "lucky" attendee. If you're into that sort of thing.
Still free drinks and free food.