In Reply to: tracy your post is only true if you book posted by willow on Thursday, 7. May 2009 at 22:35 Bali Time:
I've booked rooms direct, at a hotel that is not even offered as part of the package deal circuit. TA's can't book it. I booked direct via email. The room price is the room price, regardless of one person or two people staying in it.
Every hotel I contacted direct for room quotes (non package deal hotels, not available through TAs) quoted me the same cost for a room, whether it was single or twin share. I also looked at quite a few online booking sites. The room prices were almost always the same for single or twin share.
"Single suppliment" is a myth. It's just the other half of the room cost that the 2nd person would have paid if you had booked twin share. Sometimes there is a small discount, which accounts for the second breakfast that isn't being used, but not always.
When you book a package deal, if you go twin share, you pay your airfare, and half of the room cost. The other person pays their airfare and the other half of the room cost. When you go single share, you pay your airfare and the whole room cost yourself.