everything...I often get flamed by my friends and girlfriend because I wont buy anything "cheap". Its like this example:
me- "Why do you buy ten dollar watches???"
Claire(my gf)- "Why did you buy a 300 dollar watch??"
me- "Because it will last me 30 years and then I wont have to buy a ten dollar watch every year for the next 30 years!!(and its a fuckin awesome watch)"

also: I wanted to buy a pool cue (even though I dont play that often) and couldnt bring myself to buy a 20 dollar one when I knew that I could buy a 100 dollar one.

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I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.