Image / brand and resale value. While I really could not care less about the badge on the car many do and the Porsche coat of arms has more cachet in more places than the intertwined flags of the Corvette and used Porsches (again depending on model and where you are) would hold value somewhat better, making them a financially sound proposition 😊
And they tend to be quite robust when subjected to spirited driving (including track use).
In my previous life we frequently had customer driving events and you could rely on the 911s to survive weeks of abuse, while many others (Audi R8s and RSs amongst others) tended to bow out after a day or so with some mechanical gremlin or other. Mind you, the Nissan GT-Rs and Renaultsport cars were solid as well 👍🏻