Well the most expensive thing I have purchased, just gameware alone not including any consoles is $1832 from yesasia.com
I am a Japanese game collector, where the import games costs around AUD150+ still remember the time where I bought a batch of Japanese games with free shipping but the bloody tax was AUD230 <_<.
I think I got a few Artbooks (~$335), OSTs (~$500) and 7 PS2 games (~$1000)... yeah... that got me all broke back in 2005

Its worth it I guess
The next most expansive this THIS YEAR is my preorder of JP PS3... I put down $700 alredy for the console and currently saving up more money to get at least 4 games before release.
Jam it back in, in the dark.