@abard:
Thanks for the input.
Jason - I was actually eluding that you could justify, before Cisco, with "Support the Community" logic but with the acquisition, it becomes a dollars and cents decision.
BBCan - I'll look into those, appreciate the suggestion.
That doesn't make any sense. You were willing to spend $500 before but not now simply because Snort was bought by a larger company. Sourcefire was never a not-for-profit and they got paid something fierce when they were purchased (it was almost $3B if memory serves).
Anyway, this price is way cheaper than the IDS options on Cisco's ASAs.