agv8or wrote in post #14741933
How did you get one for that price? I just ordered my 6th one from Adorama yesterday and paid $599. ( I guess they like you better than me.
I bought 3 from www.buydig.com
for $575 each. You can get it for $585 now with a coupon code. Although they came with 4 batteries and a charger, I wouldn't recommend buying from them because the batteries are a far cry from the advertised 3000mAh and because all three flashes came packaged very poorly with bashed up boxes.
I bought one more for $567.49 from B&H as they price matched Amazon, but it was a major PIA to get them to price match.
Adorama has $599 posted, but when you add it to cart, it says $567.49. You should check your invoice as you likely were charged the lower price. It arrived packaged well and the price was the lowest.
I checked your gear list and noticed that you don't own an ST-E3. May I ask why? Also, your gear list is very extensive so I'm just curious if you're a professional. I'm hoping you say, "No" so I can show my wife your list. 
jim_escalante wrote in post #14742145
I had a similar concern, until I saw an ST-E3-RT. It is so much smaller, it has only two batteries so it weighs much less. That convinced me to get the ST unit over a flash. I am very happy that I bought it.
jim
Previous posts convinved me to buy an ST-E3, but I wasn't able to find one anywhere except for a local store who is charging way more than the big online merchants. I'll most likely get one when I can, but in the meantime, I'm using a 600EX.