My biggest sin is the home theatre set up. I did get it cheap, second hand speakers, second hand fixed frame screen, and both the amp and the projector were on sale. But it still cost me right around $3.000. If I had bought all of it new, at full price, it would probably set me back at least $8.000 (especially the speakers were dirt cheap considering their retail price)". I really do love it though. It sounds amazing, and that crystal clear full-HD 108" screen is awesome.
I sometimes try to tell myself that because I am frugal, I saved 5.000, but the reality is I spent 3.000.