What's your Holy Grail

I got to know a vendor, and he is hiring me to do work on his website, etc. It's a regular business transaction, but he had asked me if I had any Holy Grail he could trade. Personally, I'd rather just have the cash, but I have been thinking lately about the answer.

At a price point of about $1-$2,000, what would you consider valuable enough to to be a Grail? Off the top of my head anything over one thousand starts running over three. Apparently I have the expensive tastes.