I work at my FLGS,(one day a week) making it much easier to spend lots of money, as i have a tab. So i put between 100-250, and this month ive gone way over that, good thing im 18 and have a giant disposable income. The rest come from my real job.
In the good old days of TSR and early days of Wizards I bought just about every supplement for either FR or Greyhawk. Since the switch to 3.0 and the quick fix of 3.5 I've become much more selective. So, put me in the 20-50 range.