My Trek Navigator 300 was supposed to come with a bell too. When I asked the LBS about it, he said that he noticed that too and called Trek. There was not a bell included because with the type of shifters and indicators I got (SRAM 4.0 pro) there simply was no room for a bell. I wasn't going to let it bother me because me screaming in an emergency is louder than any darn bell available.
On another note, I noticed that the saddle on my GF Cake looked different from the picture in the sales catalog (same LBS). So I definitely squawked about that one. He looked at the catalog, looked at my bike, smiled and pointed out that during the mid year change, they had included this saddle with my bike (as he points to a bike 3 steps higher than mine) but if I want, he could put on one of those off-the-rack saddles that he was selling, no charge! Nahhh, I'll just keep my stock one (as I realize that the one's he was selling were lower grade).
