As a consumer, I'm w/ NJAowner. I can certainly see not wanting to bother the crew about the lack of playing cards, as an example. You are paying a lot for the flight, so you have a reasonable expectation that everything will be just so. However, if it is not, the crew is not always who you want to complain to.
First of all, there's really no way to complain about your private jet flight without looking (or feeling, or maybe even *being*) like a complete ******************************. Even if the crew doesn't look at it that way, you've got to admit that's the reality of the situation for minor complaints. You're already so fortunate to be traveling that way that any complaint just seems like you're tempting the gods to smite you down for being such an ungrateful dick.
What it really seems like happens in those situations is that the *system* is at fault. I don't want to complain to the ops team that my pilot didn't stock enough mini-mothwashes for the flight because I don't believe it's his/her fault. If I thought the pilots weren't thorough and by the book, I wouldn't get on the plane in the first place. If there aren't any playing cards or enough mini-mouthwashes on the plane, my feeling is that the reason is that they were not on the crew's list (and you guys have to admit that no one can go over a check list like a pilot -- with the possible exception of a pair of them). What you want is a way to feed that information back to the operator without making the (always conscientious, in my experience) crew feel bad about something that's not their fault or getting them in trouble back at home.
Best,
fs
ps: Interesting I can say dick, but not ******************************. I would have guessed it would be the other way around ;-)