Now you're talkin' my language.
Blanton's, Eagle Rare, and Buffalo Trace, along with all thing's from the BT distillery, are hard to come by. I find them in the smaller towns but with Blanton's I'm usually still on a waiting/call list.
The Kroger on 665 in Grovetucky is a good spot for things like Weller's, Jefferson's, Knob Creek of all varieties, etc. They get their shipment's on Thursday's (unless that's changed in the last couple of month's) and are a good spot. There is also the Giant Eagle in GC that may have a decent selection depending on the day.
For the real hard to get things (most times) travel to The Party Source in KY. They have a great selection.
Some of my fav bourbons/whiskey's/whisky's that I would put up with any other are, in no particular order: Blanton's, Eagle Rare, Buffalo Trace, Whistlepig, Elijah Craig, Two Bitch (out of Nevada), Virgil Caine (out of the Carolina's), Woodford Reserve, Nikka Coffey Grain (out of Japan), Four Roses, Knob Creek, Weller's Reserve and Weller's Antique 107 (and the more expensive Weller's options), Heaven Hill Green Label (really any Heaven Hill for the price), Knob Creek Smoked Maple, Gentleman Jack, Hudson Manhattan Rye, Tullamore Dew, Bulleit, Ancient Ancient Age, Maker's Mark, anything from Jefferson's (particularly their Ocean's Voyage 3, my all time fav, but check out the story behind the Ocean's Line), and others. There are so many distillery's brands that have so many varieties that it's hard to name them all offhand and in a rambling.
Some of those are cheap as hell and great for sipping or mixing. Some would get you slapped in most circles if you didn't have only neat or on the rocks. Either way, all of those have their place IMO.
Also, it's good to know the difference between "whisky" (as your thread title states), "whiskey" (as you mentioned in your thread), and bourbon...unless you just don't care. That's fine too. I don't care either way. If someone knows what they like they know what they like.
In the end it comes down to trying many and seeing what you like. I like Ancient Ancient Age at ~$13/bottle and Jefferson's Ocean at ~$75-100/bottle when concerning the taste/drink type and price.