People who seek them out for track use are doing just what you called delusional; seeking them because they are not like the regular t-top version.
I'll accept that they were the base model. I could care less. Doesn't make it worth any less to me. Just don't tell me you're one who doesn't drive their Z because they are concerned about resale value... because that's what this whole debate always seems to revolve around; cost and worth.