For me it's all about timing...
Once Cathy takes the MSF class and gets her license, then I'll be losing regular access to the GS500F and suddenly I'll also only have 1 bike again (
the Boulevard). Once this happens within the next couple of weeks, I'll go into a deep depression to the point that I'll just mope around the house with little to no interest in going out riding with her since she'll have a "sport bike" and I won't... IT SIMPLY WON'T BE FAIR!
I'll continue dropping hints about the Gixxer, and one day she'll go into the garage to get her bike out and will discover that it's being blocked in by a beautiful pearl white bike that she has only ever before seen in pictures that I have plastered as wall paper on our computers. On this very day, she'll scream at me and threaten to kill me for buying it, at which time I'll jump on it and ride down the street faster than her... Then I'll let her catch up and pass me, then I'll pass her, and we'll play this out for a good hour or so until we get tired and head back home where she'll begin bragging that she was able to catch up with me (
umm, yea![/u]) and then she'll immediately hit me in the back of the head with a frying pan because I bought the Gixxer after she repeatedly said NO! 
-Tim