Many years ago Check Point Software, then the leading firewall vendor made what they thought was a good tactical marketing move. They decided since they practically owned the firewall space that they could cut out the expense of going to trade shows.
The security industry has grown considerably since the days when a firewall was all that was needed to get on the Internet safely. In the meantime Checkpoint's tactical move has turned into a strategic blunder. If there were good market data published on security vendors I would not be surprised if they had fallen to number three behind Cisco and Juniper. In such a position my recommendation to any vendor would be to have a rock'n booth at RSA. But, sadly, no Check Point this year. And even sadder that the acquisition-in-progress of Sourcefire by Check Point apparently accounts for the absence of Sourcefire from RSA 2006 as well.