Thank you kindly for all of the replies, very much appreciated.
It does seem that Roadsters tend to hang about on the market for some time, the particular car at Stratton having gone through the whole summer without being sold, even when to me it looks like a winning combination spec wise. I do admit that is my only reservation about purchasing and then struggling to sell on when the time comes as those that know the cars prefer the later 350 model it would seem. I guess the Roadster occupies a strange position in the Exige S3 line-up, possibly not hardcore enough for those that love the V6 Exige model but too hardcore for those who want a 2-seat sportscar, the type that would usually buy a fast Boxster if you will. I have to admit that I originally was looking at Boxster Spyder models (987 first gen car) myself, but the Exige S is more modern, cheaper and I think more of an event to drive.
Any further thoughts on this from anyone would be greatly received. Either way, very happy to be on this forum for the community and the knowledge it provides, thank you.