What he said...I do actually have one of these...and I have the shoe brush and the seat. That's it. The umbrella thing comes with it.
Everything else is a why-hank...unless you're Jon and really need the cigar holder....
Cigarette and beer holder thanks, the bag boy comes with umbrella holder too and they have similar after market accessories like the seat, not that I would get one.
The only things that really matter for me are beer holder, umbrella holder, place to leave a cigarette while swinging and price.