Any hobby can get expensive. But its easier for your hobby to get expensive if you're guillible and you fall for fantastic claims made by clever salesmen. ILikeJam presents some examples from the world of audiophiles. It seems there's big money to be made for ridiculously overpriced speaker cables and tweeters that are designed to reproduce frequencies the human ear can't hear and the stereo amplifier they're connected to can't produce. All this makes me think of when I was a kid and was utterly convinced that listening to LPs through headphones sounded better if I left the lid on the turntable up and had the TV turned on.