I bought the Ghostbusters BluRay disc for $4.99 from Amazon yesterday. It's $9.99 and there was a $5.00 promotion applied. I don't know where that promotion came from, so YMMV.
New item, sold by Amazon. Prime/super saver shipping eligible.
If you've been on the fence about buying the BluRay, now is the time.http://www.amazon.com/gp/product/B00164GDD2
Items Ordered Price
1 of: Ghostbusters [Blu-ray], Bill Murray, et al
Sold by: Amazon.com LLC
Item(s) Subtotal: $9.99
Shipping & Handling: $0.00
Promotion Applied: -$5.00
Total Before Tax: $4.99