I to recognize the problem. Tend to spend a little to much on mt:s. When you get more you rise the level for what you are willing to spend on them or whatever you collect. Think it´s very common to spend to much money on stuff you could use for doing stuff instead.
It´s a choice you make. I mean I could buy 3 new LM Charges or I could go for a weekend in Paris.(at least here in europe maybe not in Usa where mt.s are so cheap)