Tell her that if she wants one, she can buy it herself
Have
Want
-The Getaway: High Speed II!! -Spider-Man -F-14 Tomcat -Guns N' Roses -Lord of the Rings -Twilight Zone
-Medieval Madness! -Indiana Jones (Williams) -Star Trek: The Next Generation -Champion Pub -Terminator 3 -Congo -Johnny Mnemonic -Tales of the Arabian Nights
I bought the Shadow for my wife, sort of. She was pretty against me getting a second pin. But I heard good stuff about Shadow, and she's a big fan of the movie, so I decided to go for it and she's now ok with my other purchases since then (T2, LOTR, TAF). She's got good taste. It helps that we no longer have to worry about paying for our wedding.
It also helps that my money is more valuable in pinball machines than in the market.
Have
Want
-The Getaway: High Speed II!! -Spider-Man -F-14 Tomcat -Guns N' Roses -Lord of the Rings -Twilight Zone
-Medieval Madness! -Indiana Jones (Williams) -Star Trek: The Next Generation -Champion Pub -Terminator 3 -Congo -Johnny Mnemonic -Tales of the Arabian Nights