Obligatory anti-corn whiskey post here.
Stranahan's Colorado Whiskey is the best whiskey made in America. You can pick up a bottle for under $60.
There are fine single-malt Scotch whiskies available in the $50 range. Bowmore. Balvenie. Macallan. Etc. The ten- to twelve-year-olds you'll find in this range don't have near the depth of flavor that their older brethren have, but they are (in my opinion) way better than the syrupy sweet corn whiskies of Tennessee and Kentucky.
If you're willing to stretch it to $65-$70, it's easy to find a 10-year-old Springbank, which is the finest distillery in the world.
In Knoxville, McScrooge's out at Cedar Bluff has a great selection. I don't remember his name, but the guy who does their buying knows his stuff.