Just on my way to pick up number 4, a 2005 Z4 3.0, with a nice little supercharger on it...
2005 Z4 3.0 sc
2003 R1150R Rockster
and went the way of the dodo the other week
2003 Z4 3.0
There are cheaper things to be addicted too, but I guess these things are too bad for you in the long run.