Worst decision from a emotional standpoint anyway would be an all stock '57 2 dr. HT we purchased from the original owner in Monterey Park, CA back in the early 80s. All stock car that we eventually totally restored. The only Coronado Yellow / White top '57 2 dr HT I've ever seen. Sold it for $15,000 back in the early 90s to some collector from a Detroit suburb (Dryden?).
Wish I had it back along with many others along the trail.