Just my 2 cents and why I am buying a similar car. It is about the purposefulness of the car. Simplicity. Just an engine strapped to a chassis and a minimal body to cover it all up. Less weight. More power. Less stuff to muddle it all up. No alarm. No cupholders. No ABS.
For me, it is the same things that attract me to the Elise.. but turned up to 11.