Owned my SPF almost three years, basically never did a thing to it other than change
oil, filters etc.. It all depends upon what you want, like you I looked at Vettes(new and mid 60's), Z-3's, Porches(
), nothing did for me like a Cobra replica. Didn't drive it near as much as I thought I would, but I do live in western WA, still in all one of the most fun vechicles I've owned.
Now I've got another one.