I've only participated in a few live sales (a couple from WWC and one from Unique Corals) but I would agree that the actual "savings" or "value" is not as much you'd expect for a "sale". Sure you can get some $5 frags if you're quick enough, but then you typically have to buy another standard frag with each $5 frag. When you factor in the cost of shipping, you're losing any savings you got from those $5 frags. I think the main benefit from my perspective is picking up some corals that aren't available at my local LFS, and to be honest, I kind of enjoy the frantic nature of the live sales. However, as someone else pointed out it definitely encourages impulse buys which don't always turn out so well.