Red Rocks is a great venue. The only time I was dissappointed was when I went to a Tool show about 3 years or so ago and they had the volume down a bit too much for the vocals, we couldn't hear the lyrics. Then someone figured it out and cranked it up a bit.
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Some people are like slinkies, they aren't really good for anything, but they still bring a smile to your face when you push them down the stairs.