I would not spend my money on it again. Very small group, and all mega huge gigantic banks (so if you're that...well you might want to go)
The PCI conference in the fall (annualy) and the San Francisco Fed Reserve conference (will be in 2006) are the best out there. Both are much better priced, but also have much more content. This was panel after panel of people discussing things that the group already knew (published info). In the bar at night the folks I was hanging out with (about 10 of us) agreed it just wasn't worth the price in any fashion.
That being said...I also wouldn't pay half the price to go. It just didn't apply to anyone but the mega guys.
PCI this fall is at Barton Creek in Austin TX (Oct 23-26th). You do not need to be a PCI user to attend. They aren't allowed to advertise their program, they're only the host.
The difference, MUCH better networking, larger group but still reasonable (I'd be surpised if 100 ppl were at the DC conference) (350 is average for PCI) and content is much more hands on, without droaning speakers
If that one isn't in the budget, do the fed reserve next year. A much larger conference, but again, content is fabulous. More lecture type stuff, but much better value, and at both the networking is way higher content.