FYI, Ran past Gander on my way to Cabelas today. nice 8.5x11 signs on the front with the simple phrase "Opening April 30th".
If its like I think it will be, they should have ammo for about 4 hours, and decent firearms for about 2 days - Then the stock will be what everything else is.
I am guessing the prices will be higher than wal-mart but lower than Gunbroker