Chivas 12 is $32 here.
18 is $79
Chivas isn't bourbon though.
Cheap is under $20 like Rebel Yell $15.99
For Scotch how about Clan Mcgregor $19.99 for 1.75 liter?
Haha, yeah, but I didn't think we were talking 'Shizzo' cheap. Good Islay single malts cost quite a bit more than that but I do think they are worth it. Chivas is great for get-togethers and making cocktails, and it doesn't break the bank.
I don't think I've ever tried Clan Mcgregor, actually. Will look for it next time I'm in the UK. Any blend around that price should be great for mixing, though.