These are good points.
"Useless" is a little strong. Some of the stuff on my list was like stuff in the garage -- collecting dust -- no longer applicable and needed to be tossed.
A "Wish List" is a great thing; I agree with that. I may not have the money for that trip now -- but down the road.....
Finally, I appreciate Scott mentioning "should not create guilt." David Allen said this personally to me when I was chatting with him during a break at one of his seminar's. You have to be comfortable with "having a big list" and just accept it.
Again; all great points. Great help and reminders for me -- and I hope the same for others.