Lets see last two new knives I bought was in 2007, over $500 worth I think in one go, not the biggest buy out there but, I never bought a knife over $70 before. However if we are talking new to me, then that's a whole different story. I also traded some recently, just got a nice CQC-10 in the mail yesterday, and I got me one more knife coming on the way.
I found an easy way not to buy a knife each week, or each month, its painful but I can't afford a new Busse even every half a year.