I find that any item that I appreciate the quality of is worth the money. For example I think a good watch is worth the money. Same thing with suits, dress shirts, and ties. I don't really care about sunglasses so I don't spend money on nice ones but I know some people that will spend a lot of money on them.

I also tend to purchase higher end electronics (TV, computer, stereo, etc). I would rather spend more money and have the product last longer than replace things frequently.