I've made a few. I even made a connection with an NVidian when I worked for NEC. We had a small problem with one of your cards, and an engineer came to see what he could do. Only problem is, he didn't have a DVD, so I lent him one, one of my personal DVDs. He reproduced the problem, and asked if I could lend him the DVD. it was to return to the US (I'm in France). Sure! I trust you guys. It went back with him, the next day the problem was corrected, and the day after my DVD was shipped. To the Singapore office. Singapore didn't know what to do with it, they sent it to another office, and my poor little DVD racked up more air miles than I did. It even became a joke at the office; "Where is James' DVD?". A few weeks later, the same engineer found it, and sent it back. The parcel didn't get lost; I found my DVD, and a brand new top of the range MX440 (they rocked in those days!), as an apology.
RIght now I'm eyeing up the 750 Ti; my trusty 550 Ti just died (power problem, not the card itself), and I need to replace it quick. Writing my second book on a horrible integrated system with three screens is NOT fun. It is an absolute nightmare. Hey, need me to lend you a DVD? :-) Thanks for the story, NVIDIA!
P.S. You are mentioned in the first book :-) Want a copy?