I feel stupid now for ordering the 70-200 f/2.8 IS II USM. It will be here Tuesday. I got the rebate and all, but the street price with the rebate is still $200 less than I paid. I bought it through B&H. Thought I was getting a really good deal.
Call them after their price drops, see what they say. Maybe you'll get a double dip?
I suppose it couldn't hurt to try.
Definitely call them. I bought 4 600EX-RTs on one order a couple of years ago, and there was a significant price drop (when multiplied by 4) within 30 days of my date of purchase (in other words, within the product return window). I contacted B&H by e-mail, and they immediately credited my charge account for the difference between the old and new prices, no questions asked.
By the way, I purchased the 70-200 II from B&H in June, at $2,499 before $300 rebate and ~ $50 in B&H reward credits, for a net price of about $2,150. It was an upgrade from the 70-200/2.8L IS mark I, and I'm totally satisfied, even though it cost about $550 more (net) than I paid for the new mark I 8 years ago.
Ditto with Adorama. I bought a CF card and 3 price drops later... I'm saying they were nice enough to give me the discounted price each time.
After all is said and done... you might get the rebate plus a price break... and that is a thing of beauty.