I see 9mm advertised for $250 per 500 rounds from 2 or more of the regular suspects, in emails this past week. I was offered a 20 dollar discount just for mentioning our beloved forum to the owner of Weapons world, which even though I didn't purchase was a nice gesture on his part.
Don't be afraid to mention THR, it carries some clout with online retailers, I was speaking to the woman who takes the orders "just shooting the breeze", and THR came up in conversation, next thing I know she says the boss wants to talk with you. Long story short he seemed like a nice guy, and was eager to sell a THR member some ammo, I had just purchased some of that Liberty 50 grain stuff and my order had gotten messed up so he offered me a deal on more 9mm.
They know who we are so mention the forum in conversation and you may get a discount, "may not" but I didn't do it for that reason, it just came up when we were talking about where I shop and how I found out about them.