I like drinking and I like drinking on the go. I used to have a perfectly serviceable flask that I carried on occasion over the span of 10 or so years. The one problem I had with it was that it would set off metal detectors and generally would not be allowed on airplanes, thus severely negating its usefulness. I'd like to own this flask made by Macallan as I think it's a step in the right direction, but since it's carbon fiber composite and metal, it would still set off metal detectors. While I'd like to own this flask, it's overwrought and ridiculously expensive and I'd much rather spend the money on something I'm sure to use.
A 60's era Stratocaster or, preferably, Telecaster. While it would be amazingly fun to have something that old and storied, I can more than get by on a 2000's Mexi-Strat or comparable guitar.
It would be nice to have a full line of legitimate vintage equipment, but it's not worth the costs unless you're somebody like John Frusciante.