How much is too much?

As a reformed shopaholic I indulge in internet browsing every now and then. I was just shoe shopping online..well not really shopping it was more like wishful thinking. The Lucky Brand Wedges are so cute but are they worth $100? I say yes and they are currently on my wish list, size 10 please. These Platform Pumps are cute but are they worth $500? It seems as though the more expensive something is the uglier it is. I would spend $100 on some cute wedges but $500 on some plain pumps is out of the question but that's just me.