I picked "as long as I play well." I wanted to say "as long as I learn something" but that would have been dishonest. I don't really feel that way.;-)
But, I think when I have played people way better than me, I have learned a lot in the times that I played well.
For example, I played Shin Park once. I won 4 games (race to 9, but I had a 1 game handicap). I was happy with the result, because--to the extent of my abilities--I didn't give the match away. The four games I won, I got out realy nicely. I had one really difficult runout that I made it through. It's one of the few runouts I've ever made, that I can actually remember clearly.
There were two games where I missed the 8 ball. Makeable shots, but not hangers. If I made those, the score might have been 6-7, and from there who knows? (maybe I would have scratched on the next break, and he would have run out the set...)
Anyways, I learned that I don't have to be nervous when playing such giants. I have a chance, even if it is a small one, to win. At least I can get my licks in. So, for me, my experience is that if I play well in these situations, I will probably learn something along the way.