I did the same thing, Mike. The minute something is on Amazon, I pre-order now and keep my eyes peeled for coupons and price matches. My Peter Pan 3 Disc set is now showing as as total of $24.05 ($29.96 - $8 coupon + tax). I'm sure it will be lower by the time March rolls around.
WAY back when, there was an $8 digital coupon on Amazon. I pre-ordered at the price then.
Amazon has also price matched the $27.99 price and taken the $8 off $27.99. $19.99. No shipping with Prime, only a little tax.
This afternoon I'm off to get Dark Knight Rises and TNG S2...
I've had Finding Nemo 3D on pre-order from Amazon for months (literally...the order went in on June 6). The price is now $27.99, which should be price matched since it has not shipped yet. And there was an $8 digital coupon at the time, which theoretically brings the price down to $19.99...