there's no definite time of the year that electronics or computer hardware goes on sale.
some items you'll find on Black Fridays but usually not much higher end stuff.
graphics card prices aren't expected to drop for a couple more years at least.
MSRP is a bit higher than previous series but the majority of the crazy prices seen around are due to scalpers picking up the majority of new models available and then doubling/tripling the prices.
you can try signing up for Newegg.com's 'Newegg Shuffle' and hope to get selected as a buyer for those items offered for each new raffle.
took me a few months of applying 3-4 times a week to land the two cards that i did over the past year or so.