The only time I was impulsive in buying something, it was my '71 911 S. A poster came on Pelican asking questions about a car that he acquired by adverse possession. IOW, a tenant had left it in a garage at an apt that he owned. So, he got the title and asked what it was worth not running back there in '04.
He finally settled on "5 or 6K." I emailed him and said 5K was on its way and I'd figure out how to get it from KY to CA. Sight unseen, 5K is serious money to throw down on even an S (in 2004).
It all worked out. I think you guys remember the car: