"The reason I've never bought one, is because I don't have the money."
So what's this, $115K with maybe an additional $10K in options? For that sort of money I think I'd get an Evora Sport 410, or an Exige if I could find one. Lots of pros and cons when it comes to build quality, handling, specialness, practicality etc. YMMV
It's interesting when you step from a good car into a Cayman/Boxster and feel like you were in a boat before, there is still an element of that when you go from a Cayman/Boxster into an Exige. The Lotus feels truly like a race car for the road. Now some people might not want that level of involvement on a day to day basis, there is no relaxing. The Evora is the more relaxing choice.