To my taste? No, it's not worth it. I hit the point of diminishing returns pretty quickly when spending money on alcohol.
One time, I was at the Scottish Festival in Estes Park, CO. They were auctioning off a whole untapped cask of 100-year old, single-malt scotch for some kind of fundraise event...and right next to it, they had tapped its sister cask for people to sample. (I can't remember the name of the distillery, but apparently it was famous because it was destroyed in a fire? Probably just a legend, to justify the high price tag.) It ended up selling for several thousand dollars.
So anyway. I paid $25 for a half-ounce pour of 100-year old single-malt scotch. And it was good, but it wasn't OmG aMaZiNg...certainly not "$600 a bottle" good. It was better than the 12-year stuff that I had at home, but it didn't taste any different from the 18-year stuff I sometimes get when I'm out on the town. Maybe there are refined palettes out there that can taste a difference in a double-blind test, but personally I think it's a myth. Past a certain point, I think people stop tasting the liquor and start "tasting the price tag," so to speak.
IMO, anything over $50 a bottle is a waste of money, and anything over $100 a bottle is an IQ test.