Buying what's essentially a very expensive toy can cause rifts in some relationships. Sarcona says he loses sales all the time when men go home to talk their purchases over with their wives rather than buying on the spot.

But Fisher believes involving your spouse in the purchasing process and getting her behind the steering wheel can change the dynamic. "Let her drive it! She will love it," says Fisher. "I can tell you that if my husband wanted to buy himself a Maserati, he better damn well let me drive it once in a while." She points out that owning collectible and exotic cars is about much more than just cars. There's a strong community aspect to having one, with special events for like-minded individuals that can be a further lure for potential owners.